Gossen MetraWatt P500, P1500, P800, P4500, P3000 Operating Instructions Manual

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Operating Instructions

SYSKONP500, P800, P1500, P3000 and P4500

Computer Controlled Laboratory Power Supplies

3-349-373-03

13/10.16

2 GMC-I Messtechnik GmbH

Contents Page

1 Initial Inspection – Warnings . . . . . . . . . . . . . .3

2 Initial Start-Up – Dimensional Drawings . . . . . . 4

2.1

Dimensional Drawing SYSKON P500 / P800 / P1500 . . 4

2.2 Dimensional Drawing SYSKON P3000 / P4500 . . . 5

2.3 Preparing for Operation . . . . . . . . . . . . . . . . . . . . . . 6

2.3.1 Installing the Optional GPIB Interface Module . . . . . . . . . . . 6

2.3.2 Setup as Benchtop Device . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3.3 Installation to a 19'' Device Cabinet . . . . . . . . . . . . . . . . . . 6

2.3.4 Connection to the Mains . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3.5 Connecting Power Consumers . . . . . . . . . . . . . . . . . . . . . . 6

2.3.6 Connection to Computer Interfaces . . . . . . . . . . . . . . . . . . . 6

2.3.7 Driver update (USB device driver) . . . . . . . . . . . . . . . . . . . . 7

2.3.8 Connecting the Analog Interface . . . . . . . . . . . . . . . . . . . . . 7

2.4 Switching the Device On . . . . . . . . . . . . . . . . . . . . . 7

2.4.1 Table of Firmware Versions . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4.2 Response after Power ON with Varying Line Voltage

Ranges (230 V  115 V) . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Technical Description . . . . . . . . . . . . . . . . . . . .9

4 Technical Data . . . . . . . . . . . . . . . . . . . . . . . .12

4.1 General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.1.1 Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . 13

4.1.2 Ambient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2.1 Terminals (rear panel) . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.3 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.3.1 Reference Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5 Controls, Display Elements and Terminals . . .18

5.1 Front Panel SYSKON P500 / P800 / P1500 . . . . . . 18

5.2 Rear Panel P500 / P800 / P1500 . . . . . . . . . . . . . 20

5.3 Front Panel SYSKON P3000, P4500 . . . . . . . . . . . 22

5.4 Rear Panel SYSKON P3000, P4500 . . . . . . . . . . . 24

6 Menu Structure and Parameters . . . . . . . . . . 26

7 Analog Interface . . . . . . . . . . . . . . . . . . . . . . . 28

7.1 Connector pin assignments . . . . . . . . . . . . . . . . . 28

7.2 Auto-sensing mode . . . . . . . . . . . . . . . . . . . . . . . . 30

7.3 Status Signal Outputs . . . . . . . . . . . . . . . . . . . . . . 30

7.4 Regulating Output Voltage . . . . . . . . . . . . . . . . . . 31

7.5 Controlling Output Current . . . . . . . . . . . . . . . . . . 31

7.6 Voltage Monitoring Output . . . . . . . . . . . . . . . . . . 32

7.7 Current Monitoring Output . . . . . . . . . . . . . . . . . . 32

7.8 Trigger Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.9 Parallel Connection . . . . . . . . . . . . . . . . . . . . . . . . 34

7.9.1 Direct Parallel Connection . . . . . . . . . . . . . . . . . . . . . . . . 34

7.9.2 Master-Slave Parallel Connection . . . . . . . . . . . . . . . . . . . 35

7.10 Series Connection . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.10.1 Direct Series Connection . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.10.2 Master-Slave Series Connection . . . . . . . . . . . . . . . . . . . . 37

7.11 Varying the Internal Output Resistance Value . . . . 38

8 Descriptions of Operating Commands . . . . . .39

9 Status and Events Management . . . . . . . . . . .56

10 Table of Operating and Query Commands . . . .58

10.1 Adjustable Functions and Parameters . . . . . . . . . 58

10.2 Queriable Functions and Parameters . . . . . . . . . . 60

10.3 Sequence Status Diagram . . . . . . . . . . . . . . . . . . . 62

10.4 Memory Structure . . . . . . . . . . . . . . . . . . . . . . . . . 63

11 System Messages . . . . . . . . . . . . . . . . . . . . .64

12 Operating Software . . . . . . . . . . . . . . . . . . . . .66

13 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

14 Order Information . . . . . . . . . . . . . . . . . . . . . .70

15 Repair and Replacement Parts Service

Calibration Center* and Rental

Instrument Service . . . . . . . . . . . . . . . . . . . . .70

16 Product Support . . . . . . . . . . . . . . . . . . . . . . .70

17 Manufacturer’s Guarantee . . . . . . . . . . . . . . .70

Note

These operating instructions describe devices as from firmware version 005, see chapter 2.4.1.

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1 Initial Inspection – Warnings

When unpacking the instrument, make sure that the KONSTANTER and all included accessories are fully intact and have not been damaged during transport.

Unpacking

• Other than the usual care exercised in handling electronic equipment, no additional precautions are required when unpacking the instrument.

• The KONSTANTER is delivered in recyclable packaging, which provides for adequate protection during transport as substantiated by testing. If the instrument is repacked at a later point in time, the same packaging or its equivalent must be used.

Visual inspection

• Compare the order number or type designation included on the packaging and/or the serial plate with the particulars shown in the shipping documents.

• Make sure that all accessory components have been included (seechapter 14 “Options and Accessories”).

• Inspect the packaging, as well as mechanical instrument and accessory components for possible transport damage.

Complaints

If damage is discovered, immediately file a claim with the freight forwarder (save the packaging!). If other defects are detected or in the event that service is required, inform your local representative, or contact us directly at the address included on the last page of this handbook.

Use for Intended Purpose

Use of the KONSTANTER for its intended purpose is only fulfilled if the instrument is used in accordance with the stipulations set forth in the respective operating instructions, and is operated within the specified power limits. The Konstanter may only be used by persons with appropriate technical knowledge, or who have received appropriate instruction.

In order to prevent danger during use, shock-proof connector cables must be used when connecting power consumers. The KONSTANTER’s output values (U, I) must be adjusted such that no danger of overloading or destruction exists for the connected power consumer.

Only then can the safety of the user, the instrument and the device under test or the power consumer be assured.

Warnings and Safety Precautions

The KONSTANTER has been manufactured and tested in accordance with the electrical safety regulations listed under Technical Data as a safety class I device, and has been shipped from the factory in flawless technical safety condition. In order to maintain this condition and to assure safe operation, users must observe all notes and warnings included in these operating instructions.

Attention!

A note concerning operation, practical advice or other information which must be adhered to in order to prevent damage to the KONSTANTER, and to assure correct operation.

Warning!

An operating procedure, practical advice or other information which must be adhered to in order to assure safe operation of the KONSTANTER, and to prevent personal injury. The most important warnings are summarized below.

Warning!

Protective Grounding, PE Connection

The KONSTANTER may only be placed into operation after the protective conductor has been connected. Interruption or disconnection of the protective conductor may result in

danger for the user.

The device is connected to the mains by means of a 3 conductor cable with mains plug.

Warning!

Opening the Housing Covers

Remove the mains plug from the outlet before opening the housing. When the housing covers are opened, voltage conducting parts may be exposed. Any contact with these exposed conductive parts is life endangering. For this reason, the instrument may only be opened by trained personnel who are familiar with the dangers involved.

Warning!

Repair by Trained Personnel

Maintenance and repair work, as well as internal balancing, may only be performed by trained personnel who are familiar with the respective functions, and the dangers involved. After the instrument has been disconnected from the mains, wait approximately 5 minutes in order to allow the capacitors to discharge themselves to safe voltage levels.

Warning!

Replacing Fuses

Only specified fuse types with the specified nominal current rating may be used to replace blown fuses (see Technical Data and specifications on the serial plate). Manipulation of the fuses and/or the fuse holder is prohibited.

Attention!

Impaired Safety

If it can be assumed that safe operation is no longer possible, the KONSTANTER must be removed from service and secured against inadvertent use. Safe operation is no longer possible: – If the KONSTANTER demonstrates visible damage or

transport damage – If the KONSTANTER no longer functions – After lengthy periods of storage under conditions

which deviate from the specified storage conditions

Significance of Symbols

Indicates EC conformity

This instrument fulfills the requirements of applicable European and national EC directives. This is confirmed by means of the CE mark.

A corresponding declaration of conformity can be requested

from GMC-I Messtechnik GmbH.

Observe ESDS guidelines

Warning concerning a point of danger (attention: observe documentation!)

The device may not be disposed of with the trash. Further information regarding the WEEE mark can be accessed at www.gossenmetrawatt.com by entering the search term WEEE.

4 GMC-I Messtechnik GmbH

2 Initial Start-Up – Dimensional Drawings

2.1 Dimensional Drawing SYSKON P500 / P800 / P1500

447

465

482.6

501

76.2

Installation position for optional IEEE-488 interface (material no. K384A).

All dimensions in mm

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2.2 Dimensional Drawing SYSKON P3000 / P4500

447

465

482.6

501

177

101.6

Installation position for optional interface IEEE-488 (material no. K384A).

All dimensions in millimeter

6 GMC-I Messtechnik GmbH

2.3 Preparing for Operation

Note: Numbers in brackets make reference to the items listed in the dimensional drawing.

2.3.1 Installing the Optional GPIB Interface Module

Warning!

The device must be switched off when installing the interface module. Remove the mains plug from the outlet. The interface module may be damaged by electrostatic discharge. ESDS handling guidelines must be adhered to. Do not touch electrical contacts or components.

1. Unscrew the cover plate at the right-hand side of the rear housing panel.

2. Carefully remove the ribbon cable from the cable uptake and plug it in, being certain to observe coding as shown on the interface module.

3. Carefully insert the connected module into the opening and secure it with the previously removed cover plate screw.

2.3.2 Setup as Benchtop Device

The instrument is shipped as a benchtop device and the feet are already installed. The mounting tabs for installation to a 19" rack are shipped loose. The instrument can be set up as a benchtop device and placed into operation. Unimpaired ventilation of the instrument must be assured during setup.

2.3.3 Installation to a 19'' Device Cabinet

The SYSKON KONSTANTER housing allows for use as a benchtop instrument, as well as for installation to a 19'' rack.

The benchtop instrument can be quickly converted to a rack mount device:

1. Unscrew the handles at the front.

2. Pull out the filler strips at the sides and replace them with the included rack-mount fastening tabs.

3. Replace the front handles (if you prefer to leave the handles off, turn M4 screws with a maximum length of 8 mm into the threaded holes).

4. Unscrew the feet from the bottom of the housing.

5. Save all loose parts for possible future use.

Attention!

The instrument must be attached at both sides to guide rails inside the device cabinet. The guide rails, as well as the front panel mounting screws, are cabinet-specific and must be procured from your rack supplier.

2.3.4 Connection to the Mains

Warning!

Protective Grounding, PE Connection

The KONSTANTER may only be placed into operation after the protective conductor has been connected. Interruption or disconnection of the protective conductor may result in

danger for the user.

The device is connected to the mains by means of a 3 conductor cable with mains plug.

Attention!

Before switching the SYSKON KONSTANTER on, it must be assured that available mains power complies with the supply power values specified at the mains connection on the back of the device.

SYSKON P500/P800/P1500: The device can be operated with either 115 or 230 V mains power. Full output power (1500 W) can be taken advantage of when operated with 230 V mains power. Due to resulting input current, only 750 W of output power can be supplied when operated with 115 V mains power. SYSKON P3000/P4500: In order to exploit the full nominal power, the device must be operated with a 400 Volt 3-phase current system.

Integrated monitoring circuits detect mains power and limit output power in the event of overloading.

The instrument is connected to a mains outlet with earthing contact via the mains inlet connector [18] at the rear panel with the help of the included power cable (only included with the SYSKON P500/P800/P1500).

2.3.5 Connecting Power Consumers

The output leads are connected to the output terminal blocks [14] at the rear panel by means of ring-type cable lugs with the included screws. (SYSKON P500/P800/P1500: M6 x 10, SYSKON P3000/P4500: M8 x 12 and M6 x 10). In addition to this, 4 mm holes are also provided which are intended for the connection of any utilized measurement cables.

Connection:

 Remove the safety cap.  Connect the output leads to the terminal blocks with the

provided screws and washers.

 An adequate wire cross-section and correct polarity must be

assured. It is advisable to twist the output leads and to identify polarity at both ends.

 Avoid exerting excessive force at the terminals.  Align the leads to the openings in the safety cap.  Snap the safety cap back into place.

In order to be able to take advantage of highly constant output voltage at the consumer even if long leads are used, sensing leads can be used to compensate for voltage drops within the output leads (see chapter 7). The terminals for the sensing leads are located on the analog interface.

2.3.6 Connection to Computer Interfaces

Three interfaces are available on the instrument for computercontrolled operation.

The device is furnished with a USB port and an RS 232 interface as standard equipment.

A GPIB interface can be ordered as an optional module and installed as described. Installation at a later point in time is also possible.

The instrument cannot be remote controlled via more than one interface at a time. It is thus advisable to connect the desired interface only.

In order to avoid communications problems with the interfaces, only one interface should be connected to the computer. Problems may otherwise occur.

In order to assure that existing bus activity is not interfered with, all affected devices should be switched off while establishing the bus connection.

All of the interfaces have a common reference point (GND) which is connected to PE, and are isolated from the output in accordance with the specified electrical safety regulations.

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a) USB Port

The type B USB plug is at the at the bottom right-hand side of the front panel. Appropriate USB drivers must be installed, which are on the included CD or can be downloaded from the Internet, see chapter 2.3.7.

b) RS 232C Interface

The socket connector for the RS 232 interface is on the instrument’s rear panel. A 9-pin subminiature socket connector is used to this end.

RS 232C Interface: 9-pin subminiature socket connector

DIN 41652

Connector pin assignments

Pin 2: TXD (transmit data) Pin 3: RXD (receive data) Pin 5: GND (ground)

Figure 1:Connector Cable for Serial Interface

c) GPIB or IEC Bus Interface (optional)

This interface is optional and can be installed to the slot provided for this purpose on the rear panel.

IEEE 488/IEC 625 Interface Connection

24-pin IEEE 488 socket connector

IEEE 488/IEC 625 Interface Functions

SH1 – SOURCE HANDSHAKE AH1 – ACCEPTOR HANDSHAKE T6 – TALKER L4 – LISTENER TE0 No extended talker function LE0 No extended listener function SR1 – SERVICE REQUEST RL1 – REMOTE / LOCAL DC1 – DEVICE CLEAR PP1 – PARALLEL POLL DT1 – DEVICE TRIGGER C0 – No controller function E1 / 2 – Open collector driver Codes / formats Per IEEE 488.2

2.3.7 Driver update (USB device driver)

We recommend a driver update in the following cases:

• Replacement purchases of devices (connecting new devices of the SYSKON range with a PC)

• retrofitting of interface cards

• firmware udate

• software update

GMC-I Driver Control software can be downloaded from Gossen Metrawatt's website at:

http://www.gossenmetrawatt.com

 Produkte  Software  Software for Testers  Dienstprogramme  Driver Control

The ZIP file can be unpacked in any desired directory. The setup file then appears in the directory. Installation is started by double clicking the setup file. A wizard guides you through the installation procedure.

2.3.8 Connecting the Analog Interface

The plug connection for the analog interface is located on the rear panel. Two 10-pin plug-in screw terminal connections are used to this end. The necessary connections for the selected analog control function can be made here. In order to keep cross interference with the analog signals to a minimum, it is advisable to use shielded connector cables. The individual signals are described under “Analog Interface”.

2.4 Switching the Device On

After the described preparations have been completed, the device can be switched on. The mains switch is located at the bottom left-hand side of the front panel.

Start-Up Routine

After switching the device on, the POWER lamp [4] lights up and the fan is started. The microprocessor included in the device then starts a power-up test. The following operations are performed during the test routine (duration approximately 6 seconds):

• Reset all functional units (except battery-backed configuration memory)

• LED and display segment test

• Hardware/firmware version display, see chapter 2.4.1

• Line voltage range is detected, see chapter 2.4.2

• Initialization of the 2 (possibly 3) computer interfaces; if the device has been equipped with the optional “IEEE 488 interface”, the selected IEC bus device address then appears briefly at the display (example: “Addr 12”). See chapter 6 main menu level SETUP DISPLAY & INTERFACE for changing the device address.

• Date display (internal clock)

• Time display (internal clock)

• Recall last settings if applicable

• Switch to (default after “*RST”) display of measured values for voltage (Uout) and current (Iout)

After initial power-up, the device is set to its basic default configuration (see the table entitled “Adjustable Functions and Parameters” in chapter 10.1).

Upon shipment from the factory, the device is configured such that the setpoints for output voltage and current are set to zero, and the power output is set to off.

For further use, status after power on depends upon the selected device configuration.

This configuration is selected either manually with the help of the corresponding menu item, or by means of the POWER_ON command.

Attention!

Avoid switching the device on and off in a rapid, repeated fashion. This temporarily impairs the effectiveness of the inrush current limiting function, and may result in a blown fuse.

TxD 2

RxD

GND

2 RxD

3 TxD

5 GND

SYSKON

RS 232

PC / Controller

9-Pin Subminiature Socket Connector

9-Pin Subminiature Plug Connector

8 GMC-I Messtechnik GmbH

2.4.1 Table of Firmware Versions

2.4.2 Response after Power ON with Varying Line Voltage

Ranges (230 V  115 V)

Up to and including Firmware Version 004

After „Power ON“, a distinction is made - on the basis of the line voltage detected - between the two available power ranges. When the line voltage is „low“, output power Pnom is reduced by half (see chapter 4.1).

The specified value „PSET < Pnom“ (and/or „PSET < Pnenn/2“ in the case of power derating), in turn, is the setting criterion for the function „Power control“. After an automatic change of Pnom it may be necessary to correct the PSET value for power control!

Power ON & Setting „Power_ON RST / SBY / RCL / ...“:

• „RST“ Pnom is always readjusted in accordance with the detected line voltage.

• „SBY“, „RCL“ A low line voltage always leads to a reduced Pnom value. If the device is subsequently switched on to a „high“ line voltage, the low Pnom value remains active until either: – a „RESET“ is performed (!) or – „Power“ is reconnected with parameter

setting

„POWER_ON RST“

Changes between the line voltage ranges result in system messsages, see Err AC-L and Err AC-H in chapter 11.

As from Firmware-Version 005

After „Power ON“, a distinction is made - on the basis of the line voltage detected - between the two available power ranges.

When the line voltage is „low“, output power is limited to approximately 55 % of the nominal power. If the device is switched on in setting „POWER_ON RST“ at „low“ line voltage, the setting limit value is reduced to half the nominal power for parameter PSET.

The specified value „PSET < Pnom“ (and/or „PSET < Pnenn/2“ in the case of power derating), in turn, is the setting criterion for the function „Power control“.

Power ON & Setting „Power_ON RST / SBY / RCL / ...“:

• „RST“ Pnom is always readjusted in accordance with the detected line voltage.

• „SBY“, „RCL“ A low line voltage always leads to a reduced maximum output power. The setting limit values for parameter PSET, however, remain unchanged until either: – a memory recall of a corresponding device

setting is performed or – „Power“ is reconnected with parameter

setting

„POWER_ON RST“

Changes between the line voltage ranges result in system messsages, see Err AC-L and Err AC-H in chapter 11.

Firmware Version Memory Locations

Version 003 12 SETUP memory locations

1536 SEQUENCE memory locations

Version 004 15 SETUP memory locations

1700 SEQUENCE memory locations

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3 Technical Description

Description

SYSKON KONSTANTERs (power factor control, single-output system power supplies) are manual and remote controllable DC power supplies for laboratory and system use. Thanks to modern switching controller technology, the devices are compact and lightweight despite high output power.

Active power factor control assures nearly sinusoidal mains input current.

The floating output features “safety separation” from the mains input as well as from the computer interfaces, and is classified as a safety extra-low voltage circuit (SELV) in accordance with VDE / IEC. Wide ranging nominal output power values are available from output voltage and output current.

The power output is voltage and current controlled with limiting to maximum withdrawable power.

Transition to the control modes is automatic in accordance with the selected setpoints and load circumstances.

The control loops are designed for short response times. An automatically activated, dynamic sink (can be disabled)

provides for quick discharging of the output capacitors. Numerous protective functions and monitoring devices allow for

ideal adaptation to actual conditions of use.

Features

The devices are generally equipped with a control panel and display, as well as an analog interface.

One USB port and one RS 232 interface are provided as standard equipment for integration into computer controlled systems. The drivers for the USB port are provided as accessories on the included CD ROM.

An IEEE 488 interface can be additionally installed to the device from the outside ,or retrofitted as an option.

Manual adjustment of voltage and current is accomplished by means of two rotary encoders with selectable resolution, or with the numeric keypad. Numerous additional functions can be accessed via keys.

Two 5-place digital LED displays read out measured values and settings. LEDs indicate the current operating mode, selected display parameters and the status of device and interface functions.

The analog interface makes it possible to adjust output voltage and current with the help of external control voltages. Monitor outputs read out an analog image of the voltage and current output quantities for further processing or additional displays.

These control inputs and monitor outputs can also be used to couple several devices for master-slave operation with parallel or series connection.

Two floating trigger inputs are available for controlling certain device functions. For example, they can be used to switch the output on and off, or to control sequences.

Furthermore, three signal outputs are included at the analog interface, two of which are floating. These can be activated depending upon various functions, and can thus be used to control external devices or sequences.

Applications Range

Konstanters are suitable for use wherever electronic modules with controlled direct voltage or controlled current need to be supplied with electrical power, especially in the fields of R&D, testing, production, test systems and training.

Thanks to their characteristic U-I-P curve, the devices have a broad working range, making it possible to cover a large range of applications with a single device.

Due to their short response times, SYSKON KONSTANTERs can be used for replication and simulation of onboard electrical systems, for example in automotive applications. Test signals specified in the corresponding standards can be generated. The fact that these voltage-current-time profiles can be saved to memory at the Konstanter for running independent sequences is highly advantageous. When used in test systems, it is thus possible to significantly reduce workload for the control computer. Further functions for test applications of this sort include the Min-Max function for acquiring extreme values and the tolerance band function which generates a signal when measured values do not lie within the specified tolerance limits.

The Konstanter thus serves as an autonomous test system for many applications.

Adjustable Functions (selection)

– Voltage and current setpoint values – Voltage and current limit values (soft-limits) – Activate / deactivate the output – Overvoltage protection trigger value (OVP) – Overcurrent protection trigger value (OCP) – Delay time for reaction to overvoltage – Selection of the desired reaction when OVP and OCP are

triggered – Delay time for reaction to overcurrent – Performance after power on – Reset device settings – Save device settings – Recall device settings, individually or sequentially – Function selection for trigger input – Configurable status and events management

with enabling windows (via computer interface) – Activate / deactivate digital displays

Retrievable Information (selection)

– Presently measured voltage and current values – Minimum and maximum measured voltage and current values – Current output power – Current device settings – Current device status (i.e. control mode, overtemperature etc.) – Occurred events (i.e. mains failure, overtemperature,

overvoltage, overload etc.) – Device ID (via computer interface)

Protection and Additional Functions

– Sensor terminals protected against polarity reversal and

automatic switching to auto-sensing – Protection against excessive temperature – Output protected against reverse polarity – Front panel control disabling – Backup battery for device settings memory – Recognition of mains or phase failure – Inrush current limiting

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Performance After Power on

In the event of mains failure, it’s important to specify which operating state the device will assume when power is restored. This may be extremely important if the device is used in long-term testing applications.

One of the following states can be selected: – Reset = default setting (0 V, 0 A, output deactivated) – Standby= last used configuration but with deactivated output – Recall =

last used configuration – same as when the instrument

was last switched off, with

active output if it was active prior to

mains failure

– Recall a device configuration from setup memory

Set Output Voltage and Output Current

Output voltage and output current can also be adjusted using the rotary encoders or the numeric keypad if desired. The rotary encoders are used exclusively for adjusting voltage and current. The decimal place to be changed is selected with the scroll keys. Additional functions and parameters can be accessed and adjusted with the keys.

Switching the Input On and Off

The power output can be switched on and off by pressing the appropriate key, with a computer command or by applying a signal to the trigger input. When switched off, the output is highly resistive and is not electrically isolated from the power consumer. The LED on the key indicates status.

Protection and Additional Functions

A multitude of protection and additional functions have been integrated, for example:

• Limiting of the setting ranges for voltage and current

• Overvoltage protection (OVP) with adjustable response delay and reaction

• Overcurrent protection (OCP) with adjustable response delay and reaction

• Protection in the event of reversed polarity at the sensing leads

• Automatic switching to auto-sensing

• Protection against excessive temperature

• Output protected against reverse polarity

• Front panel control disabling

• Backup battery for device settings memory

• Mains failure detection

• Inrush current limiting

• Line voltage monitoring

Line Voltage Monitoring

To protect the device, power output is deactivated and disabled in the event of voltage dips or short-term interruptions. The device must be restarted with „Power ON“.

Dynamic Sink

A dynamic sink is activated by the control loops as required for rapid discharging of the output capacitors.

This allows for short response times when switching to smaller setpoint values. Depending upon the application, the sink function can also be disabled.

Auto-Sensing

The device can be switched to sensing mode operation (remote sensing) in order to compensate for voltage drop at the output leads. Sensing lead terminals are available to this end at the analog interface. If the (–) negative sensing terminal is connected to the negative load point, the device is automatically switched to sensing mode operation. Maximum compensatable voltage drop is 1 V per output lead.

Front Panel Control Disabling

The controls can be disabled to prevent unauthorized operation by pressing the appropriate key, with a computer command or by applying a signal to the trigger input.

Analog Control Inputs

Voltage and current can also be adjusted by via the control inputs at the analog interface. A 5 V signal corresponds to 100% of the respective nominal value.

These inputs can be switched on and off using the keys, or with computer commands.

The controlled output quantity is the sum of the digital setpoint value and the specified value at the control input.

This function makes it possible to superimpose these control signals onto the output quantities.

Monitor Outputs

The actual values for output voltage and current can be acquired at the monitor outputs as a standardized signal (10 V corresponds to 100% nominal value).

Trigger Inputs

Two floating trigger inputs are available for controlling device functions. The following trigger input assignments can be selected:

– output = Switch the power output on and off – local lock = Disable controls – SQS = (sequence step) Step-by-step control of a

stored sequence – sequence = Start / stop the sequence function – Analog input = Activate / deactivate the analog control inputs

Signal Outputs

Programmable Control Outputs The analog interface is equipped with three digital control outputs

for status messages to external monitoring devices, for switching external components on and off, or for coupling purposes.

The status of these outputs can be defined either directly, or depending upon the following device statuses:

– Output on or off – Voltage or current regulation – Sequence function running or finished – SSET signal status for the sequence function – Limit value message for the measuring function (tolerance band)

Min-Max Measured Value Memory

The Min-Max function automatically acquires and saves minimum and maximum voltage and current values.

Tolerance Band (in combination with Min-Max function)

Measured output values can be continuously compared with stored upper and lower tolerance band values. Evaluation is possible via the programmable control outputs.

GMC-I Messtechnik GmbH 11

Memory

The memory function makes it possible to save and recall device configurations using a battery-backed memory module. The memory module is equipped with two storage areas:

– Setup memory: 12/15 memory locations for complete

configurations

– Sequence memory: 1536/1700 memory locations for the fol-

lowing sequence parameters: voltage setpoint USET, current setpoint ISET, dwell time TSET and function request FSET, with the ability to invoke subsequences

Sample Application

Generation of a characteristic voltage curve in an automotive electrical system when starting the engine

Note: The drop times can be influenced by the input impedance of the

DUT.

Balancing Function (adjust)

Offset and final values for setting and measured values for output quantities voltage and current are balanced digitally in the device. The user can execute balancing as required with this function.

DAkkS Calibration Certificate

All SYSKON Konstanters are shipped with a DAkkS calibration certificate issued by our DAkkS test laboratory.

U [V]

4.5

t [ms]

15 5 2000 10

12 GMC-I Messtechnik GmbH

4 Technical Data

4.1 General Data

Output Operating Ranges, Characteristic U-I-P Curve SYSKON P500

Output Operating Ranges, Characteristic U-I-P Curve SYSKON P800

Output Operating Ranges, Characteristic U-I-P Curve SYSKON P1500

Output Operating Ranges, Characteristic U-I-P Curve SYSKON P3000

Output Operating Ranges, Characteristic U-I-P Curve SYSKON P4500

Output

Regulator type Primary switched-mode regulator Operating modes Adjustable constant voltage / constant cur-

rent source with automatic sharp transition

Output insulation Floating output with “safe electrical

separation” from the mains input and computer interfaces

Allowable potential, output–ground Max. 240 V DC

Capacitance, output–ground (housing) SYSKON P500

typically 1000 nF

SYSKON P800

typically 1000 nF SYSKON P1500 typically 1000 nF SYSKON P3000 typically 1000 nF SYSKON P4500 typically 1000 nF

GMC-I Messtechnik GmbH 13

Analog Interface

Functions – Auto-sensing mode

– 2 programmable trigger inputs – 3 programmable signal outputs – Voltage control input (0 ... 5 V) – Current control input (0 ... 5 V) – Voltage monitor output (0 ... 10 V) – Current monitor output (0 ... 10 V) – Master-slave parallel operation – Master-slave series operation – Auxiliary power output: 15 V / 60 mA

Computer Interfaces

• IEC-625 / IEEE 488 interface (optional)

• RS 232 interface Transmission mode asynchronous Transmission speed 1200 to 115,200 baud, adjustable

•USB port USB port: 4-pin, type B USB 1.1 compatible with USB 2.0 Connector pin assignments 1: VCC, 2: D-, 3: D+, 4: GND Transmission speed 9600 to 115,200 baud, adjustable

Power supply

Line voltage

115

/230 V ~ + 10 / – 15%; 47 to 63 Hz

Inrush current Max. 50 A

Mains fuse

SYSKON P500/P800/P1500

: 1 x M 15 A / 250 V (6.3 x 32 mm), UL SYSKON P3000

/4500: 3 x M15 A/250 V

Electrical Safety

Safety class I Measuring category II for mains input

I for output and interfaces

Fouling factor 2 Earth leakage current < 2.5 mA

RMS

Electrical isolation Test voltage Output – mains 2.2 kV ~ Output – bus/ground 1.4 kV ~ Mains – bus/ground 2.2 kV – Bus – ground No electrical isolation

Applicated Standards

IEC 61010-1:2010 DIN EN 61010-1:2010 VDE 0411-1:2011 EN 61326

4.1.1 Electromagnetic Compatibility

SYSKON P500/P800/P1500

Generic standard EN 61326-1: October 2006 Interference emission EN 55022: class B Interference immunity

EN 61000-4-2: feature A EN 61000-4-3: feature B EN 61000-4-4: feature A EN 61000-4-5: feature A EN 61000-4-6: feature A EN 61000-4-8: feature A EN 61000-4-11: feature A

SYSKON P3000/4500

Generic standard EN 61326-1: October 2006 Interference emission EN 55022: class A * Interference immunity EN 61000-4-2: feature B

EN 61000-4-3: feature A EN 61000-4-4: feature B EN 61000-4-5: feature B EN 61000-4-6: feature A EN 61000-4-8: feature A EN 61000-4-11: feature B

* Note: Approved for the deployment in industrial environment. The device may cause radio interferences in domestic areas.

4.1.2 Ambient Conditions

Temperature range Operation: 0 to 40° C

Storage: –25 to +75° C

Atmospheric humidity Operation:  75% rel. humidity,

no condensation allowed

Storage:  65% rel. humidity

Cooling With integrated fan

(temperature controlled) Inlet vent: Side panel Outlet vent: Rear panel

Operating noise Noise pressure level at a distance of 30 cm

with fan set to low / high Front 17 / 28 dBA Rear 22 / 32 dBA Left 17 / 28 dBA Right 20 / 31 dBA

14 GMC-I Messtechnik GmbH

4.2 Mechanical Data

Protection IP 00 for device and interface connections

IP 20 for housing

Table Excerpt Regarding Significance of IP Codes

Design Benchtop device, suitable for installation to 19" cabinets

HE = standard height units

4.2.1 Terminals (rear panel)

Mains input

SYSKON P1500

: 10 A IEC inlet plug with earthing contact (L + N + PE)

SYSKON P3000

/4500: Connection terminals

(min. 16 A)

(L1 + L2 + L3 + N + PE)

Output

SYSKON P1500

Terminal blocks with thread for M6 screws and 4 mm dia. holes

SYSKON P3000

/4500:

Terminal blocks with thread for M8 and M6 screws and 4 mm dia. holes

Analog interface / Double-row plug connector sensing leads with two 10-pole screw terminals

IP XY

char. X)

Protection against penetration by solid particles

IP XY

(2nd char. Y)

Protection against

penetration by water

0 Not protected 0 Not protected 1  50.0 mm dia.



1 Vertical dripping

2  12.5 mm dia.



2 Dripping (15 inclination)

Article No. Designation Dimensions (W x H x D) Weight

K346A SYSKON

P500-060-030

19" x 2 HE 447 x 102 (88) x 541 (501) mm

10 kg

K347A SYSKON

P800-060-040

19" x 2 HE 447 x 102 (88) x 541 (501) mm

10 kg

K353A SYSKON

P1500-060-060

19" x 2 HE 447 x 102 (88) x 541 (501) mm

10 kg

K363A SYSKON

P3000-060-120

19" x 4 HE 447 x 191 (177) x 541 (501) mm

16 kg

K364A SYSKON

P4500-060-180

19" x 4 HE 447 x 191 (177) x 541 (501) mm

20 kg

K384A IEEE 488 interface

(optional)

Approx. 0.14 kg

GMC-I Messtechnik GmbH 15

4.3 Electrical Data

at maximum current setting not including processing time for the previous voltage setting command

Nominal load: Rload = Uset² / Pnom

Article Number K346A K347A K353A Type SYSKON P500-060-030 SYSKON P800-060-040 SYSKON P1500-060-060 Nominal Output Data Voltage setting range

Current setting range

Powe r

0 ... 60 V 0 ... 30 A max. 500 W

0 ... 60 V 0 ... 40 A max. 800 W

0 to 60 V 0 to 60 A

Max. 1500 W Output Characteristics (ppm and percentage values make reference to the respective setting or measured value) Setting resolution Voltage

Current

1 mV 1 mA

1 mV

1 mA Setting accuracy (at 23 5 °C) Auto-sensing mode

Without auto-sensing

Voltage

Current

0.05 % + 30 mV

0.05 % + 48 mV

0.05 % + 90 mA

0.05 % + 30 mV

0.05 % + 48 mV

0.05 % + 90 mA

0.05% + 30 mV

0.05% + 48 mV

0.05% + 90 mA

Temperature coefficient for / K setting

Voltage Current

100 ppm 100 ppm

100 ppm

100 ppm Setting accuracy via analog interface (at 23 5°C) U

setnom/Usetanalog

= 12; I

setnom/Isetanalog

= 12/24/36

Voltage Current

0.6 % + 120 mV

0.6 % + 120 mA

0.6 % + 120 mV

0.6 % + 120 mA

0.6% + 120 mV

1.2% + 120 mA Static system deviation Auto-sensing mode at 100% load fluctuation

Without auto-sensing

Voltage

Current

30 mV (< 500 μV/A) 48 mV

(< 800 μV/A;)

30 mA

(< 500 μA/V)

30 mV (< 500 μV/A) 48 mV

(< 800 μV/A;)

30 mA

(< 500 μA/V)

30 mV (< 500 μV/A) 48 mV

(< 800 μV/A;)

30 mA

(< 500 μA/V) Static system deviation with 10% line voltage fluctuation

Voltage Current

5 mV 5 mA

Residual ripple Voltage

Current

Ripple: 10 Hz to 20 kHz

Ripple: 10 Hz to 1 MHz

Ripple + noise: 10 Hz to 10 MHz Ripple + noise: 10 Hz to 10 MHz

40 mV

50 mV

60 mVss / 6 mV

eff

50 mA

eff

40 mV

50 mV

60 mVss / 6 mV

eff

50 mA

eff

40 mV

50 mV

60 mVss / 6 mV

RMS

50 mA

RMS

Output voltage transient recovery time with sudden load variation within range of 20 to 100% I

nom

and 20 to 100% U

nom

Tol e ra nc e

I = 10%



I = + 80% + approx. 800 A/ms



I = – 80 % + approx. 1200 A/ms

120 mV 100 μs 600 μs 950 μs

120 mV 100 μs 500 μs 650 μs

120 mV 100 μs 400 μs

500 μs Output voltage over and undershooting with sudden load variation within a range of 20 to 100% I

nom

and 20 to 100% U

nom

I = 10% I = 80%

150 mV 500 mV

150 mV 550 mV

150 mV

700 mV Setting time for output voltage

where Uset step = 0 V  60 V where Uset step = 60 V  1 V

where Uset step = 0 V  25 V where Uset step = 25 V  1 V

Tol e ra nc e

No-load; nominal load

120 mV 2 ms / 2 ms 70 ms / 20 ms

1.4 ms / 1.4 ms 16 ms / 5 ms

120 mV 2 ms / 2 ms 70 ms / 15 ms

1.4 ms / 1.4 ms 16 ms / 3 ms

120 mV

2 ms / 2 ms

70 ms / 11ms

1.4 ms / 1.4 ms

16 ms / 3 ms Output capacitor Sink (continuous power)

Nominal value

Power

2020 μF 40 W – 65 W

2020 μF

40 to 65 W

Measuring Function

Measuring Range Voltage

Current

Power

– 16.384 … + 98.300 V – 32.766 … + 98.300 A U x I

– 16.384 to + 98.300 V

– 2.766 to + 98.300 A

U x I Measuring resolution Voltage

Current

Power

2 mV 2 mA 100 mW

2 mV

2 mA

100 mW Measuring accuracy (at 23  5°C) Voltage

Current

Power

0.05 % + 30 mV

0.4 % + 90 mA

0.5 % + 1 W

0.05 % + 30 mV

0.4 % + 90 mA

0.5 % + 1 W

0.05% + 30 mV

0.4% + 90 mA

0.5% + 1 W

Measured value temperature coefficient / K Voltage

Current

50 ppm + 0.4 mV 100 ppm + 1 mA

0.4 mV + 50 ppm

1 mA + 100 ppm Measuring accuracy (at 23 ± 5 °C) at analog interface U

actualnom

/ U

actualanalog

= 6; I

actualnom

/ I

actualanalog

= 6/12/18

Voltage Current

0.4 % + 120 mV

0.5 % + 180 mA

0.4 % + 120 mV

0.5 % + 180 mA

0.4 % + 120 mV

1.2 % + 180 mA

Protection and Additional Functions

Output overvoltage protection Trigger value

Response time

Setting Range

Setting resolution

Setting accuracy

3 … 80 V 20 mV 150 mV –10 m x I

200 μs

3 … 80 V 20 mV 150 mV –20 m x I

200 μs

3 to 80 V

20 mV

150 mV – 10 m x I

200 μs Output overcurrent protection Trigger value

Response time

Setting Range

Setting resolution

Setting accuracy

1.5 … 40 A 20 mA –(1% + 350 mA) – 20 mA/V x U

200 μs

2 … 53 A 20 mA

–

(1% + 350 mA) – 20 mA/V x U

200 μs

3 to 80 A

20 mA

–(1% + 350 mA) – 20 mA/V x U

200 μs Reverse polarity protection load capacity Continuous 30 A 40 A 60 A Reverse voltage withstand capacity Continuous 70 V – 70 V – 70 V – Auto-sensing mode Compensatable voltage drop Per output lead 1 V 1 V 1 V

General

Power supply with 230 V~ nominal line voltage Power consumption

Line voltage

At nominal load, 100%

At no load

230 V~ + 10 / – 15 %, 47 … 63 Hz 700 VA; 650 W 96 VA; 37 W

230 V~ + 10 / – 15 %, 47 … 63 Hz 1050 VA; 1000 W 96 VA; 37 W

230 V~ + 10 / – 15%,

47 to 63 Hz

1925 VA; 1865 W

96 VA; 37 W Power supply with 115 V~ nominal line voltage Power consumption

Line voltage

At nominal load, 50%

At no load

115 V~ + 10 / – 15 %, 47 … 63 Hz 800 VA; 750 W 55 VA; 36 W

115 V~ + 10 / – 15 %, 47 … 63 Hz 1175 VA; 1150 W 55 VA; 36 W

115 V~ + 10 / – 15%,

47 to 63 Hz

1125 VA; 1100 W

55 VA; 36 W Max. power loss

At a nominal load

500 W/800 W/1500 W (230 V~)

At a nominal load 500 W/800 W/750 W (115 V~)

150 W 250 W

200 W 350 W

365 W

350 W Efficiency

At a nominal load

500 W/800 W/1500 W (230 V~)

At a nominal load 500 W/800 W/750 W (115 V~)

77 % 66 %

80 % 70 %

80%

68% Switching frequency, PFC / DC/DC Typical 47 kHz / 230 kHz 47 kHz / 230 kHz 47 kHz / 230 kHz Inrush current Max. 50 A

50 A

Mains fuse (6.3 x 32 mm, UL) 1 x M 15 A / 250 V 1 x M 15 A / 250 V 1 x M 15 A / 250 V MTBF (mean time between failures) at 40 °C > 50,000 h > 50,000 h > 50,000 hours

16 GMC-I Messtechnik GmbH

at maximum current setting not including processing time for the previous voltage setting command

Nominal load: Rload = Uset² / Pnom

Article Number K363A K364A Type SYSKON P3000-060-120 SYSKON P4500-060-180 Nominal Output Data Voltage setting range

Current setting range

Power

0 ... 60 V 0 ... 120 A max. 3000 W

0 ... 60 V 0 ... 180 A

max. 4500 W Output Characteristics (ppm and percentage values make reference to the respective setting or measured value) Setting resolution Voltage

Current

1 mV 2 mA

1 mV

3.125 mA

Setting accuracy (at 23 5 °C) Auto-sensing mode

Without auto-sensing

Voltage

Current

0.07 % + 48 mV

0.07 % + 60 mV

0.1 % + 135 mA

0.1 % + 48 mV

0.1 % + 60 mV

0.15 % + 180 mA

Temperature coefficient for / K setting

Voltage Current

100 ppm 100 ppm

100 ppm

100 ppm Setting accuracy via analog interface (at 23 5°C) U

setnom/Usetanalog

= 12; I

setnom/Isetanalog

= 12/24/36

Voltage Current

0.6 % + 150 mV

1.2 % + 180 mA

0.6 % + 150 mV

1.2 % + 240 mA Static system deviation Auto-sensing mode at 100% load fluctuation

Without auto-sensing

Voltage

Current

60 mV (< 500 μV/A) 96 mV (< 800 μV/A) 60 mA (< 1000 μA/V)

90 mV (< 500 μV/A) 144 mV (< 800 μV/A)

90 mA (< 1500 μA/V) Static system deviation with 10% line voltage fluctuation

Voltage Current

7 mV 30 mA

10 mV

60 mA Residual ripple Voltage

Current

Ripple: 10 Hz to 20 kHz

Ripple: 10 Hz to 1 MHz

Ripple + noise: 10 Hz to 10 MHz Ripple + noise: 10 Hz to 10 MHz

60 mV

75 mV

90 mVss / 10 mV

eff

70 mA

eff

80 mV

100 mV

120 mVss / 15 mV

eff

100 mA

eff

Output voltage transient recovery time with sudden load variation within range of 20 to 100% I

nom

and 20 to 100% U

nom

Tol e ra nc e

I = 10%



I = + 80% + approx. 800 A/ms



I = – 80 % + approx. 1200 A/ms

120 mV 400 μs 1200 μs 1900 μs

120 mV

500 μs

1600 μs

2500 μs Output voltage over and undershooting with sudden load variation within a range of 20 to 100% I

nom

and 20 to 100% U

nom

I = 10% I = 80%

200 mV 1200 mV

250 mV

1300 mV Setting time for output voltage

where Uset step = 0 V  60 V where Uset step = 60 V  1 V

where Uset step = 0 V  25 V where Uset step = 25 V  1 V

Tol e ra nc e

No-load; nominal load

120 mV 4 ms / 15 ms 70 ms / 11 ms

1.2 ms / 6 ms 16 ms / 6 ms

120 mV

7 ms / 19 ms

70 ms / 11 ms

2.4 ms / 11 ms

16 ms / 6 ms Output capacitor Sink (continuous power)

Nominal value

Power

4040 μF 80 W – 130 W

6060 μF

120 W – 195 W

Measuring Function

Measuring Range Voltage

Current

Power

– 16.384 … + 98.300 V – 65.532 … + 196.600 A U x I

– 16.384 … + 98.300 V

– 98.298 … + 294.900 A

U x I Measuring resolution Voltage

Current

Power

2 mV 4 mA 100 mW

2 mV

6 mA

100 mW Measuring accuracy (at 23  5°C) Voltage

Current

Power

0.07 % + 48 mV

0.6 % + 120 mA

0.7 % + 2 W

0.1 % + 48 mV

0.8 % + 180 mA

1 % + 3 W Measured value temperature coefficient / K Voltage

Current

50 ppm + 0.6 mV 100 ppm + 2 mA

50 ppm + 0.8 mV

100 ppm + 3 mA Measuring accuracy (at 23 ± 5 °C) at analog interface U

actualnom

/ U

actualanalog

= 6; I

actualnom

/ I

actualanalog

= 6/12/18

Voltage Current

0.6 % + 180 mV

1.2 % + 240 mA

0.8 % + 180 mV

1.2 % + 300 mA

Protection and Additional Functions

Output overvoltage protection Trigger value

Response time

Setting Range

Setting resolution

Setting accuracy

3 … 80 V 20 mV 150 mV – 20 m x I

200 μs

3 … 80 V

20 mV

150 mV –20 m x I

200 μs Output overcurrent protection Trigger value

Response time

Setting Range

Setting resolution

Setting accuracy

6 … 160 A 50 mA

–

(1% + 500 mA) – 40 mA/V x U

200 μs

9 … 240 A

100 mA

–

(1% + 700 mA) – 60 mA/V x Ua

200 μs Reverse polarity protection load capacity Continuous 120 A 180 A Reverse voltage withstand capacity Continuous 70 V – 70 V – Auto-sensing mode Compensatable voltage drop Per output lead 1 V 1 V

General

Power supply with 230 V~ nominal line voltage Power consumption

Line voltage

At nominal load, 100%

At no load

3x230/400 V~ + 10 /

–

15 % 47 … 63 Hz 3810 VA; 3710 W 100 VA; 45 W

3x230/400 V~ + 10 / – 15 % 47 … 63 Hz 5660 VA; 5500 W

110 VA; 55 W Power supply with 115 V~ nominal line voltage Power consumption

Line voltage

At nominal load, 50%

At no load

3x115/200 V~ + 10 /

–

15 % 47 … 63 Hz 2215 VA; 2180 W 73 VA; 48 W

3x115/200 V~ + 10 / – 15 % 47 … 63 Hz 3305 VA; 3255 W 92 VA; 60 W

Max. power loss

At a nominal load

3000 W/4500 W (230 V~)

At a nominal load 1500 W/2250 W (115 V~)

710 W 680 W

1100 W 1030 W

Efficiency

At a nominal load

3000 W/4500 W (230 V~)

At a nominal load 1500 W/2250 W (115 V~)

81 % 69 %

82 %

69 % Switching frequency, PFC / DC/DC Typical 47 kHz / 230 kHz 47 kHz / 230 kHz Inrush current Max. 50 A

50 A

Mains fuse (6.3 x 32 mm, UL) 3 x M 15 A / 250 V 3 x M 15 A / 250 V MTBF (mean time between failures) at 40 °C > 40,000 hours > 30,000 hours

GMC-I Messtechnik GmbH 17

4.3.1 Reference Conditions

Ambient temperature 23 °C 2 K

Relative humidity 40 ... 60 % Warm-up time 30 minutes

Output operating characteristics (ppm and percentage specifications refer to the respective setting and/or measured value)

18 GMC-I Messtechnik GmbH

5 Controls, Display Elements and Terminals

5.1 Front Panel SYSKON P500 / P800 / P1500

* valid as from revision level 02 and firmware version 004. In the case of hardware revision level < 02, the LED lights up yellow in both cases.

Protective Functions and Status Displays

OTP/OVP LED lights up Overtemperature protection triggered or

output voltage  80 V exceeded,  OUTPUT = off

OVP LED lights up Overvoltage detection triggered,

ovset and ovdly parameter values exceeded (prerequisite: ovp parameter = on)  OUTPUT = off

OCP LED lights up Overcurrent detection triggered,

oCset and oCdly parameters exceeded (prerequisite: oCp parameter = on)  OUTPUT = off

OVP ON LED lights up Overvoltage shutdown is activated

(ovp parameter in device setup menu = on)

OCP ON LED lights up Overcurrent shutdown is activated

(oCp parameter in device setup menu = on)

Control Mode Status Display

CV LED lights up Constant voltage regulating mode: Uout  Uset LED Plim / CP* lights up yellow: Pout > Pnom (OL) green*: PSET < Pnom progr. (CP) CC LED lights up Constant current regulating mode: Iout  Iset

Mains Switch

POWER LED lights up Device is switched on POWER switch Switches the device on and off

Power Output On/Off Key

OUTPUT LED lights up Output is active OUTPUT switch Switches the power output on and off

Rotary Encoder for Voltage

Voltage setpoint Uset – adjust output voltage Uset Condition: UL_L (lower setting limit) Uset UL_H (upper setting limit)

When the rotary encoder is activated the display is switched to Uset (LED) and the cursor becomes active – the selected decimal place blinks at the display and can be selected with the

 and  scroll keys.

The new setpoint becomes effective immediately.

1213

Rack mounting tabs

Front handles

Device feet

Events

Settings

Display A

Standard display: measured voltage value Uout, display function is changed by pressing the SELECT A key or by turning the rotary knob. Adjust resolution (select decimal place) with the

 and  scroll keys

Select A

Display selection:

Uout  Uset  OVset  Pset

Uset adjusting alternatives

Activate by turning the rotary encoder, or select with Select A Uset

Scroll keys

 : select decimal place : immediately increase or reduce Uset

Numeric keypad Entry of numeric values, Uset LED blinks Execute with

, or abort with ESC

/CP

GMC-I Messtechnik GmbH 19

Rotary Encoder for Current

Current setpoint Iset – adjust output current setpoint Condition: IL_L (lower setting limit) Iset IL_H (upper setting limit)

When the rotary encoder is activated, the display is switched to Iset (LED) and the cursor becomes active – the selected decimal place blinks at the display and can be selected with the

 and  scroll keys The new setpoint becomes effective

immediately.

Device Status Displays

REMOTE LED lights up Remote control is active ADDR/DATA

LED lights up Addressing / data transmission is active

SRQ/ERR LED lights up Service request / error LCL LOCKED

LED lights up

Control panel is disabled

SEQ STS LED lights up Sequence function in HOLD status

blinks Sequence is active (RUN)

Status Displays

TRG1 LED lights up Trigger signal 1 is active TRG2 LED lights up Trigger signal 2 is active Uext ON LED lights up Voltage input via analog interface is active Iext ON LED lights up Current input via analog interface is active M/S LED lights up Master-slave function

Numeric Keypad – Menu Functions

MENU Adjustment of parameters and functions Sset Switching function: display and adjust signal level SAVE Save basic device settings (device parameters) RCL Recall basic device settings SEQ ... Sequence functions: EDIT, CONDITION, CONTROL, MEMORY NUM Numeric entry, if active the ENTER LED lights up:



transfer setting value or acknowledge selection ESC/LOCAL Return from menu level to standard display, abort of entry, ... Lock ESC/LOCAL + SEQ CTRL: disable control panel,

press and hold ESC longer than 4 seconds: enable control panel RST ESC/LOCAL + 0: reset device settings to default values

1011

Computer Interface

USB port

Scroll Keys

Increase Uset,

Iset or parameter values

Reduce Uset,

Iset or parameter values

 Select entry

position or scroll within the main menu level

 Select entry

position or scroll within the main menu level

Display B

Standard display: measured current value Iout, display function is changed by pressing the SELECT A key or by turning the rotary knob. Adjust resolution (select decimal place) with the

 and  scroll

keys.

Select B

Display selection: Iout  Iset  OCset  Pout

Iset adjusting alternatives

Activate by turning the rotary encoder, or select with Select B Iset

Scroll keys  : select decimal place : immediately increase or reduce Iset Numeric keypad Entry of numeric values, Uset LED blinks Execute with , or abort with ESC

20 GMC-I Messtechnik GmbH

5.2 Rear Panel P500 / P800 / P1500

Power Output

Terminals for connecting the power consumer. This is a floating output and can be grounded

with the positive or the negative pole.

Output connections may only be connected and disconnected when the output is inactive (OUTPUT OFF)! Danger of arcing!

Connecting the Power Consumer

The output leads are connected to the terminal blocks by means of ring-type cable lugs with the included M6 x 10 screws. Measurement cables can be additionally connected to the 4 mm holes.

 Remove the safety cap.  Connect the output leads to the terminal

blocks with the provided screws and washers.

 An adequate wire cross-section and correct

polarity must be assured. It is advisable to twist the output leads and to identify polarity at both ends.

 Avoid exerting excessive force at the terminals.  Align the leads to the openings in the safety

cap.

 Snap the safety cap back into place.

In order to prevent danger during use, shock-proof connector cables must be used when connecting power consumers.

Analog Interface (X13)

• Remote control for output voltage and current

• External measurement of output voltage and current

• Connection of sensing leads in order to compensate for voltage drops in the output leads

• Linking of several devices for master-slave operation

• Vary internal output resistance

• Control of a selected device function via the floating trigger input

Air Vents

In order to assure adequate cooling of the device, the outlet vents for the integrated fans may not be covered.

Ground Terminal (earth terminal)

The output or cable shields can be grounded here if shielded cables or control cables are used for the analog interface.

Terminal Allocation Meaning

Bottom Row of Terminals

1 TRG 1 + Trigger input 1, plus 2 TRG 1 – Trigger input 1, minus 3 TRG 2 + Trigger input 2, plus 4 TRG 2 – Trigger input 2, minus 5 SIG 1 + Signal output 1, collector 6 SIG 1 – Signal output 1, emitter 7 SIG 2 + Signal output 2, collector 8 SIG 2 – Signal output 2, emitter 9 SIG 3 + Signal output 3, collector

10 AGND 2 Auxiliary power AGND via fusing resistor 2

Top R ow of Te rminal s

12 +15 V Auxiliary power, +15 V 12 AGND 1 Auxiliary power AGND via fusing resistor 1

14 Uext + External control voltage for analog voltage setpoint (plus);

U(Uext+); Uana = +ku x U(Uext+)

15 Uext – External control voltage for analog voltage setpoint (minus);

U(Uext-); Uana = -ku x U(Uext-)

15 Iext + External control voltage for analog current setpoint (plus); U(Iext+);

Iana = +ki x U(Iext+)

16 Iext – External control voltage for analog current setpoint (plus); U(Iext+);

Iana = +ki x U(Iext+) 17 U MON Voltage monitor with reference to AGND 1 18 I MON Current monitor with reference to AGND 1 19 SENSE + Sensing input, plus 20 SENSE – Sensing input, minus

14 14

GMC-I Messtechnik GmbH 21

Mains fuse

Protects the mains power input. Use only the type specified here.

Mains Connection

Mains supply power must comply with the values specified here.

Symbols

Indicates EC conformity

Warning concerning a point of danger (attention: observe documentation!)

Observe ESDS directives

The device may not be disposed of with the trash. Further information regarding the WEEE mark can be accessed on the Internet at www.gossenmetrawatt.com by entering the search term WEEE.

Computer Interface

IEEE 488 (option)

Computer interface

RS232

22 GMC-I Messtechnik GmbH

5.3 Front Panel SYSKON P3000, P4500

* valid as from revision level 02 and firmware version 004. In the case of hardware revision level < 02, the LED lights up yellow in both cases.

1213

Rack mounting tabs

Front handles

Device feet

Events

Settings

Uset adjusting alternatives

Activate by turning the rotary encoder, or select with Select A Uset

Scroll keys

 : select decimal place : immediately increase or reduce Uset

Numeric keypad Entry of numeric values, Uset LED blinks Execute with

, or abort with ESC

Control Mode Status Display

Protective Functions and Status Displays

OTP/OVP LED lights up Overtemperature protection triggered or

output voltage  80 V exceeded,  OUTPUT = off

OVP LED lights up Overvoltage detection triggered,

ovset and ovdly parameter values exceeded (prerequisite: ovp parameter = on)  OUTPUT = off

OCP LED lights up Overcurrent detection triggered,

oCset and oCdly parameters exceeded (prerequisite: oCp parameter = on)  OUTPUT = off

OVP ON LED lights up Overvoltage shutdown is activated

(ovp parameter in device setup menu = on)

OCP ON LED lights up Overcurrent shutdown is activated

(oCp parameter in device setup menu = on)

Mains Switch

POWER LED lights up Device is switched on POWER switch Switches the device on and off

Power Output On/Off Key

OUTPUT LED lights up Output is active OUTPUT switch Switches the power output on and off

Rotary Encoder for Voltage

Voltage setpoint Uset – adjust output voltage Uset Condition: UL_L (lower setting limit) Uset UL_H (upper setting limit)

When the rotary encoder is activated the display is switched to Uset (LED) and the cursor becomes active – the selected decimal place blinks at the display and can be selected with the

 and  scroll keys.

The new setpoint becomes effective immediately.

Display A

Standard display: measured voltage value Uout, display function is changed by pressing the SELECT A key or by turning the rotary knob. Adjust resolution (select decimal place) with the

 and  scroll keys

Select A

Display selection: Uout  Uset  OVset  Pset

GMC-I Messtechnik GmbH 23

Analog Interface / Status Displays

1011

Computer Interface

USB port

Scroll Keys

Increase Uset,

Iset or parameter values

Reduce Uset,

Iset or parameter values

 Select entry

position or scroll within the main menu level

 Select entry

position or scroll within the main menu level

Iset adjusting alternatives

Activate by turning the rotary encoder, or select with Select B Iset

Scroll keys

 : select decimal place : immediately increase or reduce Iset

Numeric keypad Entry of numeric values, Uset LED blinks Execute with

, or abort with ESC

Display B

Standard display: measured current value Iout, display function is changed by pressing the SELECT A key or by turning the rotary knob. Adjust resolution (select decimal place) with the



and  scroll keys.

Select B

Display selection:

Iout  Iset  OCset  Pout

Device Status Displays

REMOTE LED lights up Remote control is active ADDR/DATA

LED lights up Addressing / data transmission is active

SRQ/ERR LED lights up Service request / error LCL LOCKED

LED lights up

Control panel is disabled

SEQ STS LED lights up Sequence function in HOLD status

blinks Sequence is active (RUN)

Numeric Keypad – Menu Functions



transfer setting value or acknowledge selection ESC/LOCAL Return from menu level to standard display, abort of entry, ... Lock ESC/LOCAL + SEQ CTRL: disable control panel,

press and hold ESC longer than 4 seconds: enable control panel RST ESC/LOCAL + 0: reset device settings to default values

Rotary Encoder for Current

Current setpoint Iset – adjust output current setpoint Condition: IL_L (lower setting limit) Iset IL_H (upper setting limit)

When the rotary encoder is activated, the display is switched to Iset (LED) and the cursor becomes active – the selected decimal place blinks at the display and can be selected with the

 and  scroll keys The new setpoint becomes effective

immediately.

24 GMC-I Messtechnik GmbH

5.4 Rear Panel SYSKON P3000, P4500

Power Output

Terminals for connecting the power consumer. This is a floating output and can be grounded

with the positive or the negative pole.

Output connections may only be connected and disconnected when the output is inactive (OUTPUT OFF)! Danger of arcing!

Connecting the Power Consumer

The output leads are connected to the terminal blocks by means of ring-type cable lugs with the included M6 x 10 screws. Measurement cables can be additionally connected to the 4 mm holes.

 Remove the safety cap.  Connect the output leads to the terminal

blocks with the provided screws and washers.

 An adequate wire cross-section and correct

polarity must be assured. It is advisable to twist the output leads and to identify polarity at both ends.

 Avoid exerting excessive force at the terminals.  Align the leads to the openings in the safety

cap.

 Snap the safety cap back into place.

In order to prevent danger during use, shock-proof connector cables must be used when connecting power consumers.

Analog Interface (X13)

• Remote control for output voltage and current

• External measurement of output voltage and current

• Connection of sensing leads in order to compensate for voltage drops in the output leads

• Linking of several devices for master-slave operation

• Vary internal output resistance

• Control of a selected device function via the floating trigger input

Terminal Allocation Meaning

Bottom Row of Terminals

10 AGND 2 Auxiliary power AGND via fusing resistor 2

Top R ow of Te rminal s

12 +15 V Auxiliary power, +15 V 12 AGND 1 Auxiliary power AGND via fusing resistor 1

14 Uext + External control voltage for analog voltage setpoint (plus);

U(Uext+); Uana = +ku x U(Uext+)

15 Uext – External control voltage for analog voltage setpoint (minus);

U(Uext-); Uana = -ku x U(Uext-)

15 Iext + External control voltage for analog current setpoint (plus);

U(Iext+); Iana = +ki x U(Iext+)

16 Iext – External control voltage for analog current setpoint (plus);

U(Iext+); Iana = +ki x U(Iext+) 17 U MON Voltage monitor with reference to AGND 1 18 I MON Current monitor with reference to AGND 1 19 SENSE + Sensing input, plus 20 SENSE – Sensing input, minus

Ground Terminal (earth terminal)

The output or cable shields can be grounded here if shielded cables or control cables are used for the analog interface.

Air Vents

In order to assure adequate cooling of the device, the outlet vents for the integrated fans may not be covered.

GMC-I Messtechnik GmbH 25

Mains fuse

Protects the mains power input. Use only the type specified here.

Mains Connection

Mains supply power must comply with the values specified here.

Symbols

Indicates EC conformity

Warning concerning a point of danger (attention: observe documentation)

Observe ESDS directives

The device may not be disposed of with the trash. Further information regarding the WEEE mark can be accessed on the Internet at www.gossenmetrawatt.com by entering the search term WEEE.

Computer Interface

RS232

Computer Interface

IEEE 488 (option)

26 GMC-I Messtechnik GmbH

6 Menu Structure and Parameters

* /r15 as from firmware version 004

Main menu level Submenu level Parameters level Parameters level

Display A Display B Display A Display B Display A Display B Display A Display B

setvp devic devic limit vl_l 0. 0 . 00 vl_h 60. . 000

SETUP DEVICE Limit value parameter Voltage setting limit value, L = lower, U = upper Setup menu

devic ovp ovp on ovdly 0. 0 . 00

Overvoltage menu Overvoltage protection on/off Overvoltage delay time

devic oCp oCp off oCdly 0. 0 . 00

Overcurrent menu Overcurrent protection on/off Overcurrent delay time

devic Cfg_d pon rst sset off

Device settings after power on

setvp dpy1f dpy1f dpy dpy-a vo dpy-b 1o

SETUP DISPLAY & INTERFACE

Digital display settings

Display A – standard display: Uo Display B – standard display: Io

Display and interface menu

dpy1f an1f trg-1 off trg-2 off

Analog interface settings Trigger input 1 on/off Trigger input 2 on/off

dpy1f bvs addr 12 bavd 9600

Interface settings Device address 6) (IEEE488) Transmission speed (RS232)

setvp seq seq ctrl seq go seq hold

SETUP SEQUENCE Access sequence

Start sequence (RUN),

footnote 3

Stop sequence

Sequence menu

seq Cond i seq-n 0 Strt 0097

Sequence settings

Sequence no. (subsequence)

footnote 1

Start address

seq ed it mem-a 0100 vset 39 . 000

Edit sequence Voltage setpoint

seq mem load 0105 store 0105

Memory functions Load sequence value Save as sequence value

setvp meas meas mm-v1 mm-v1 off v_ 9 . 992

SETUP MEASUREMENT EXTREME MEASUREMENT Min-Max memory

Minimum measured voltage value

Measuring menu

meas v1-Cs meas v1_Cs vc_ 0 . 000

meas Cfg_m m-lp 3 m-tab meas spec

rl0ad

footnote 5

30. . 531

Avx 1nfo l-Err 000 era 3

AUXILIARY Events and status memory Last error no. Events memory A Memory and calibration menu

vers1 rel 01 . . 001 vpd no

Firmware revision Firmware version Firmware update

adjvs 7.10.11 voff # vfs #

Balancing routine

Balancing date

Voltage setpoint zero point Voltage setpoint

upper limit



























ESC



ESC



ESC



ESC



ESC



ESC



ESC



ESC



ESC



ESC

654

 

vl_h 60000

Set parameter (example: upper limit value for voltage setpoint)



vl_h 60000

 

Select entry position (decimal place).

Acknowledge selection.

vl_h 40000





Increase/decrease value – alternative:

vl_h 40000



Acknowledge parameter

ESC

Jump back to higher menu level.

ovp off

Select parameter – switch function on/off.

 Acknowledge selection.

ovp on

Select status

ovp on

 Acknowledge parameter.





(here: off, on, r01 ... r12/r15*).

Number blinks, NUM LED key lights up.

Enter value directly with the numeric keypad.

or abort procedure with

ESC

setup seq

LED display (display A / B)

Key

Parameter not yet set

 

Scroll within the parameters level.



Select submenu or parameters level.

ESC

Jump back to higher menu level.

setup seq

Setting value is displayed, after which the

Hot key for direct parameter selection

measured value is entered and acknowledged with .

Select parameters.



GMC-I Messtechnik GmbH 27

1 Allows for viewing and processing of the following “condi (condition) parameters”

in setup memory n specified by “Seq-n” (application: subsequences)

2 Entry of numeric value n# is additionally possible, start address  n  stop address,

 resume sequence at memory location n#

Parameters level Parameters level Parameters level Parameters level Parameters level Parameters level

Display A Display B Display A Display B Display A Display B Display A Display B Display A Display B Display A Display B

1l_l 0.0 . 00 1l_h 60 . 000

Current setting limit value, L = lower, U = upper

ovset 40 . 000

Overvoltage protection trigger value

oCset 80 . 000

Overcurrent protection trigger value

sink off C-dyn r save 01 rcl

01 t 16 14 20 2006 08 04

Footnote 4 Footnote 5

Time (hhmm)

Year (YYYY)

M/D (mmdd)

ddc 15

Display delay time

sig-1 off sig-2 off sig-3 off a1_v off a1_1 off

Signal input 1 on/off Signal input 2 on/off Signal input 3 on/off

Voltage input on/off

Current input on/off

db 8 pb none sb 1 vsb 115.. 2t

Number of data bits (RS232) Parity bit (RS232) Stop bit (1 or 2) (RS232) Transmission speed (USB COM-Port)

Footnote 2 Footnote 2

seq cont. seq stop seq Strt seq step seq bstp seq esc

Resume sequence Stop sequence Jump to start address Forward step-by-step Backwards step-by-step Exit sequence

stop 0123 rep cont. tdef 1 . 000

Stop address Repeat sequence Default time

1set 10. . 000 tset tdef fset nf

Current setpoint Dwell time Default time Function

seq_c 0105 seq_c st-sp seq_r 0101 seq_i 0108

Delete memory location 105. Delete start-stop mem. loc. Delete & shift mem. loc. Paste & shift mem. loc.

v- 9 . 998 1_ 0 . 204. 1- 0 . 212.

Max. measured voltage value

Min. measured current value Max. measured current value

vc- 60 . 000 1c_ 0. . 000 1c- 60 . 000

m-cfg em_v em_1

erb 0 erC 0 Cra 1 crb 0

Events memory B Events memory C Status memory A Status memory B

1off # 1f5 #

Current setpoint zero point

Current setpoint

upper limit

Additional key functions:

With sequence status RUN (after GO or CONT)

[ENTER] HOLD [ESC] Abort at actual address [0]

Abort and jump to final value

With sequence status STOP (after Strt, Hold, StEP or bStP)

[UP] STEP [DOWN] BACKSTEP [ENTER] CONT [ESC] Abort at actual address [0]

Abort and jump to final value

See sequence status diagram chapter 10.3

*) The sequence is also aborted at the actual

address, when turning an increment knob or pressing a select button. (sequence-status READY)



ESC

 



ESC

 

3 Other display options can be selected while a sequence is being executed with

the

 and  keys:

The display does not return automatically to the standard display setting with this option, but rather when the sequence function has been completed or aborted.

< Selected standard display setting

MEM-A 0005

Current memory location address

rrEp cont

Remaining number of repetitions

SEq-n 00

Run is part of the main sequence

FSEt __rv

Sequence function parameter

tSEt tdEF

Memory location-specific dwell time

USEt ISET For example calculated intermediate values for

a ramp function

Uout IOUt Momentary measured values





4The  and  keys can be used as follows for scrolling while a selected RCL

function is being executed (displays A and B blink until the selection is acknowledged with the ENTER key, or until the function is otherwise aborted).

rcl 02 Access setup register 02

outp on

vset 12

. 000

1set 25

. 000

pset 1500

. . 0

oup on

ovset 80

. . 00

oCp off

oCset 80 .

. 00

pon rst

trg-1 off

trg-2 off

a1-v off

1 . off

Strt 0001

stop 0005





5) Display function does not change automatically back to standard display

6) the modification of a device

address is not accepted until restarting the KONSTANTER.

28 GMC-I Messtechnik GmbH

7 Analog Interface

7.1 Connector pin assignments

Interface Typ e

Circuit Diagram Func-

tion

Te rm inal

Meaning

TRG

TRG 1 +

TRG 1 –

TRG 2 +

TRG 2 –

Trigger Inputs

• Floating digital control inputs for controlling a device function defined by SEtUP/dPYIF/AnIF/trG 1 txt and SEtUP/dPYIF/AnIF/trG 2 txt

• Low signal: –18 V Us + 1 V

• High signal: + 4 V Us + 18 V

• Current consumption: Is = (Us – 2 V) / 1.47 k

SIG

SIG 1 +

SIG 1 –

SIG 2 +

SIG 2 –

SIG 3 +,

AGND 2

Signal Outputs

• Two floating digital status signal outputs

• One digital status signal output with reference to AGND (2)

•SIG 1, SIG 2 and SIG 3+ indicate the statuses defined by SEtUP/dPYIF/AnIF/SiG 1 txt, SEtUP/dPYIF/AnIF/SiG 2 txt and SEtUP/dPYIF/AnIF/SiG 3 txt.

• Signal type: open collector

• Max. switching voltage: 30 V DC

• Max. switching current: 20 mA

Interface Typ e

Circuit Diagram Func-

tion

Ter m in al

Meaning

+15 V

AGND 1

AGND 2

+15 V (output)

• This auxiliary voltage output (15 to 18.5 V DC with reference to AGND 1 or AGND 2) can be used to control the trigger inputs, or to supply power to external components (e.g. reference element for generating control voltages ).

• The output is equipped with electronic current limiting to approximately 60 mA, and is short-circuit proof to AGND 1 and AGND 2.

AGND 1 and AGND 2 (analog ground = reference point)

• Reference point for the analog and digital control inputs and outputs

• These terminals are internally connected to the minus pole of the power output via a reversible fuse with a rating of 110 mA.

The following is recommended:

• Use AGND 1 as a reference for the analog terminals on the upper terminal strip (pins 13 through 18).

• Use AGND 2 as a reference for the digital terminals on the bottom terminal strip (pins 1 through 9).S

1.47 k

100

20 V

60 mA

15 V

GMC-I Messtechnik GmbH 29

set

Uext +

Uext –1314

Uext +, Uext – (input)

• Analog (differential) voltage input with reference to AGND for controlling the output voltage setpoint. The following applies with activated analog setpoint (SEtUP/dPYIF/AnIF/ AI_U on): Uset = USET + ku x U(Uext +) – ku x U(Uext –) Uset = Resulting output voltage setpoint USET =

Voltage setpoint, selected manually or digitally

U(Uext+) = External control voltage (0 ... 5 V 0 ... +Usetnom)

with reference to AGND 1

U(Uext –) = External control voltage (0 ... 5 V 0 ... –Usetnom)

with reference to AGND 1 ku = Control coefficient = Usetnom / 5 V Usetnom = 60 V (SYSKON P1500-060-060)

• Input impedance: a total of 10 k each to AGND (1)

set

Iext +

Iext –1516

Iext +, Iext – (input)

• Analog (differential) voltage input with reference to AGND for controlling the output current setpoint. The following applies with activated analog setpoint (SEtUP/dPYIF/AnIF/ AI_I on): Iset = ISET + ki x U(Iext +) – ki x U(Iext –) Iset = Resulting output current setpoint ISET = Current setpoint which has been selected manually or digitally U(Iext +) = External control voltage (0 ... 5 V 0 ... –Isetnom)

with reference to AGND 1

U(Iext –) = External control voltage (0 ... 5 V 0 ... –Isetnom)

with reference to AGND 1 ki = Control coefficient = Isetnom / 5 V Isetnom = 60 A (SYSKON P1500-060-060)

• Input impedance: a total of 10 k each to AGND (1)

Monitor

UMON

IMON1718

U MON (output)

• Analog voltage output with reference to AGND (1). Voltage is proportional to output voltage Uout detected by the sensing leads. 0 ... 10 V 0 ... Uoutnom. Uoutnom = 60 V (SYSKON P1500-060-060)

• The output has an internal resistance of 8 k and is short-circuit proof.

I MON (output)

• Analog voltage output with reference to AGND (1). Voltage is proportional to internally measured output current Iout. 0 ... 10 V 0 ... Ioutnom. Ioutnom = 60 A (SYSKON P1500-060-060).

• The output has an internal resistance of 8 k and is short-circuit proof.

Sense

SENSE +

SENSE –1920

SENSE +, SENSE – (input)

• For connection of sensing leads for 4-wire operation – allows for compensation of voltage drops (to 2 x 1 V) at long leads.

• Switching to 4-wire operation takes place automatically when the SENSE – lead is connected to the appropriate output pole or negative load pole.

Interface Typ e

Circuit Diagram Func-

tion

Ter m in al

Meaning

9 k

1 k

0 to 5 V

9 k

1 k

0 to 5 V

9 k

8 k

0 to 10 V

Sense Control

U-Monitor

–OUT

+OUT

30 GMC-I Messtechnik GmbH

7.2 Auto-sensing mode

Function

Output voltage values required for voltage measuring and control circuits can be acquired directly at the consumer instead of at the output terminals with the help of the SENSE + and SENSE – sensing lead terminals at the analog interface. Sensing mode operation (remote sensing) offers the following advantages:

• In the constant voltage regulating mode, current related voltage drops occurring in the output leads have practically no effect on voltage supplied to the consumer. Voltage at the output terminals is automatically increased to compensate for voltage drops.

• In the constant current regulating mode, voltage limiting at the consumer is independent of output current.

• Since the voltage value provided by the measuring function is relative to the voltage value acquired at the sensing leads, load parameters such as power consumption and load resistance can be more accurately determined.

The parameters and limit values included in figure 7.2, and in the chapter entitled “Electrical Data”, apply to operation with the sensing leads.

Connection

• The two sensing lead terminals at the analog interface (SENSE + and SENSE –) must be connected to their respective output poles at the desired point (generally speaking as close to the consumer as possible).

• It is advisable to twist and/or shield the sensing leads in order to minimize interference (connect shield to the ground terminal of the negative output pole).

• Long output and sensing lead impedances may result in control fluctuations at the output, especially with capacitive consumers. This effect can be counteracted by connecting capacitors (CS+, CS-) between the SENSE and output terminals (see figure 7.2). If the output leads are twisted, their impedance can be reduced as well.

• Incorrect connection of the sensing leads does not damage the KONSTANTER, although it results in the following reversible events:

– Polarity reversal at sensing leads or interrupted output lead:

If output voltage is not being limited at the KONSTANTER by means of current regulation, it climbs to well above the selected value which finally triggers overvoltage protection and immediately deactivates the output.

– Interrupted SENSE + lead:

Voltage between the output terminals increases by approximately 15%.

– Interrupted SENSE – lead:

The sensing terminals are deactivated (automatic return to local sensing).

If the sensing leads have been connected incorrectly, rising voltage between the output terminals is not acquired by the measuring function.

Cs+, Cs- = 10 μF to 220 μF Us+, Us-  1 V Is+  U

outS

/ 180 k

Is–  0.3 mA

Figure 7.2 Connecting the Consumer for Sensing Mode Operation

Activation

• The remote sensing mode function is activated automatically after the SENSE – terminal has been connected to the corresponding output pole.

• The function is deactivated once again by interrupting this connection.

7.3 Status Signal Outputs

Function

• The KONSTANTER is equipped with three digital open collector outputs for indicating status.

– Two floating outputs SIG 1 , SIG 2  and – One with reference to AGND:SIG 3 +

• The device status or event to be indicated is independent for all three signal outputs. Selection is made by setting the following functions:

– SEtUP/dPYIF/AnIF/SiG-1 txt, – SEtUP/dPYIF/AnIF/SiG-2 txt and – SEtUP/dPYIF/AnIF/SiG-3 txt

(see chapter 6, “Menu Structure” and chapter 7, “Operating Commands”).

• As a status signal for monitoring devices

• For controlling external output relays

Application

• Triggering of certain device functions can be synchronized by means of connection to the trigger inputs of other KONSTANTERs.

Connection

• Values for connection – Max. switching voltage: 30 V DC Max. switching current: 20 A

• If you want to use the signal outputs to send status signals to external monitoring devices, pull-up resistors must be used in order to achieve appropriate levels. The status signal outputs can be connected to the + 15 V terminal with pull-up resistors (at least 1 k), in order to generate an active high signal of + 15 V.

Figure 7.3 Wiring Examples for Status Signal Outputs

PSP-KONSTANTER Einstellung

USET = Usoll ISET = Isoll OUTPUT ON SEtUP/dPYIF/AnIF/SiG-3 txt

Analog Interface TRG 1 + 1 TRG 1 - 2 TRG 2 + 3 TRG 2 - 4 SIG 1 + 5 SIG 1 - 6 SIG 2 + 7 SIG 2 - 8 SIG 3 + 9 AGND 2 10 +15V 11 AGND 1 12 Uext + 13 Uext - 14 Iext + 15 Iext - 16 U MON 17 I MON 18 SENSE + 19 SENSE - 20

+OUT

-OUT

Rpu

Usig

GMC-I Messtechnik GmbH 31

Setting Parameters for Status Signal Outputs

1 The signal outputs can be logically linked using the comparison function. The

comparative values are defined by parameters w1, w2, w3 and w4 from the UI_C_SET command. Momentary measured voltage and current values are compared with these parameters and evaluated.

7.4 Regulating Output Voltage

Function

Output voltage Uout can be set by means of external control voltage Usu = U(Uext +) – U(Uext –) via control inputs Uext + (non-inverting) and Uext – (inverting).

• The voltage control input functions as a differential voltage input:

• The following applies with activated analog setpoint (SEtUP/dPYIF/AnIF/AI_U on):

Uset = USET + ku x U(Uext +) – ku x U(Uext –)

Uset = Resulting output voltage setpoint USET = Voltage setpoint which has been selected

manually or digitally

U(Uext +)

= External control voltage

(0 ... 5 V 0 ... +Usetnom) with reference to AGND (1)

U(Uext –)

= External control voltage

(0 ... 5 V 0 ... –Usetnom) with reference to AGND (1)

ku =Control coefficient = U

setnom

/ 5 V

setnom

= 60 V (SYSKON P1500-060-060)

• Max. adjusting error: SYSKON P1500: 0.2% Unom 0.6% setting value SYSKON P3000: 0.25% Unom 0.6% setting value SYSKON P4500: 0.25% Unom 0.6% setting value.

• Input resistance: 10 k each

Notes

• The control inputs are not floating inputs: Their reference point, AGND (1), is connected to the negative pole of the power output.

• Connecting grounded circuits to the control input may result in erroneous settings due to leakage current or ground loops.

• If the reference point of control voltage Usu is connected to the negative output pole at the load side, the inverting input must be connected to this point (connection b in figure 7.4). Influences resulting from voltage drops in the output lead are thus avoided.

• If control voltage is isolated from the output, connect Uext – to AGND (1) (connection a in figure 7.4).

• If remote adjustment of output voltage is to be accomplished by means of a potentiometer, wiring can be laid out as shown in figure 7.4.

• Usu can also be applied as an alternating voltage, for example in order to superimpose manually selected direct voltage USET with interference signals. The maximum operating frequency of modulated output voltage depends upon voltage amplitude, the setting selected for current limiting and load, and thus cannot be defined with a simple formula. It is increased as amplitude is decreased, and as current limiting and load are increased.

Connection

Figure 7.4 Wiring for Controlling Output Voltage with External Voltage /

External Potentiometer

7.5 Controlling Output Current

Function

Output current Iout can be set with external voltage Usi = U(Iext +) – U(Iext –) via control inputs Iext + (non-inverting) and Iext – (inverting).

• The current control input functions as a differential voltage input:

• The following applies with activated analog setpoint (SEtUP/dPYIF/AnIF/AI_I on):

Iset = ISET + ki x U(Iext +) – ki x U(Iext –)

Iset = Resulting output current setpoint ISET = Current setpoint which has been selected

manually or digitally

U(Iext +) = External control voltage

(0 ... 5 V 0 ... +Isetnom) with reference to AGND (1)

U(Iext –) = External control voltage

(0 ... 5 V 0 ... –Isetnom)

with reference to AGND (1) ki = Control coefficient = Isetnom / 5 V I

setnom

= 60 A (SYSKON P1500-060-060)

• Max. adjusting error:

SYSKON P1500: 0.2% Inom 1.2% setting value SYSKON P3000: 0.15% Inom 1.2% setting value SYSKON P4500: 0.133% Inom 1.2% setting value

• Input resistance: 10 k each

Notes

• The control inputs are not floating inputs: Their reference point, AGND (1), is connected to the negative pole of the power output.

• Connecting grounded circuits to the control input may result in erroneous settings due to leakage current or ground loops.

• If the reference point of control voltage Usi is connected to the negative output pole at the load side, the inverting input must be connected to this point (connection b in figure 7.5). Influences resulting from voltage drops in the output lead are thus avoided.

• If control voltage is isolated from the output, connect Iext – to AGND (1) (connection a in figure 7.5).

txt Meaning – Allocation Level

OFF SIG n: direct off passive high ON SIG n: direct on active low OUT OUTPUT ON passive high

OUTPUT OFF active low

MODE OFF or CV passive high

CC or OL active low

SEQ READY/STOP passive high

RUN active low

SSET OFF passive high

ON active low

U_LO

Umeas  w1 passive high Umeas < w1 active low

U_HI

Umeas  w2 passive high Umeas > w2 active low

I_LO

Imeas  w3 passive high Imeas < w3 active low

I_HI

Imeas  w4 passive high Imeas > w4 active low

PSP-KONSTANTER Einstellung

USET = 0 V ISET = I soll OUTPUT ON SEtUP/dP YIF/AnIF/AI_U on

+OUT

-OUT

Usu

Last

PSP-KONSTANTER Einstellung

USET = 0 V ISET = Isoll OUTPUT ON SEtUP/dPYIF/AnIF/ AI_U on

+OUT

-OUT

2k?

Last

REF 02

OUT +5V

32 GMC-I Messtechnik GmbH

• If remote adjustment of output current is to be accomplished by means of a potentiometer, wiring can be laid out as shown in figure 7.5.

• Usi can also be applied as an alternating voltage, for example in order to superimpose manually selected direct current ISET with interference signals. To a great extent, the maximum operating frequency of modulated output current depends upon the output current value, as well as the voltage amplitude which results from the prevailing load, and thus cannot be defined with a simple formula. It is increased as amplitude is decreased, and as load is increased.

Connection

Figure 7.5 Wiring for Controlling Output Current with External Voltage /

External Potentiometer

Attention!

Control inputs Uext +, Uext – and Iext +, Iext – should only be connected with shielded cable. Connect the shield to the AGND (1) reference point.

7.6 Voltage Monitoring Output

Function

• The U MON terminal reads out voltage Umu with reference to AGND (1), which is proportional to output voltage Uout.

• U MON serves as a control voltage for master-slave series connection.

• However, U MON can also be used for external measuring, monitoring and recording.

• The following applies: Umu = Uout x kmu x kload (kload = 1: 0 ... 10 V 0 ... Uoutnom)

kmu = 10 V / Uoutnom; U-monitor coefficient kload = Rload / (Rload + Ri); load coefficient Ri(U MON)

=8k; U-monitor internal resistance

Rload = Load resistance (internal resistance of the

measuring instrument)

Uoutnom

= 60 V (SYSKON P1500-060-060)

• Max. error for Umu/kmu (where Rload > 10 M): SYSKON P1500: 0.2% Unom 0.4% actual value SYSKON P3000: 0.3% Unom 0.6% actual value SYSKON P4500: 0.3% Unom 0.8% actual value

Notes

• U MON is not a floating output: Its reference point, AGND (1), is connected to the negative output pole.

• Connecting grounded measuring circuits to the monitor output may result in erroneous measurements due to leakage current or ground loops.

• The voltage monitoring output makes reference to output voltage acquired at the sensing leads.

• The monitor output is short-circuit proof. Internal resistance is 8 k.

Connection

Figure 7.6 Voltage Monitor Wiring

7.7 Current Monitoring Output

Function

• The I MON terminal reads out voltage Umi with reference to AGND (1), which is proportional to output current Iout.

• I MON serves as a control voltage for master-slave parallel connection.

• However, I MON can also be used for external measuring, monitoring and recording.

• The following applies: Umi = Iout x kmi x kload (kload = 1: 0 ... 10 V 0 ... Ioutnom)

kmi = 10 V / Ioutnom; I-monitor coefficient kload = Rload / (Rload + Ri); load coefficient Ri(I MON)

=8k; I-monitor internal resistance

Rload = Load resistance (internal resistance of the

measuring instrument)

Ioutnom

= 60 A (SYSKON P1500-060-060)

• Max. error for Umi/kmi (where Rload > 10 M): SYSKON P1500: 0.3% Inom 1.2% actual value SYSKON P3000: 0.2% Inom 1.2% actual value SYSKON P4500: 0.167% Inom 1.2% actual value

Notes

• I MON is not a floating output: Its reference point, AGND (1), is connected to the negative output pole.

• Connecting grounded measuring circuits to the monitor output may result in erroneous measurements due to leakage current or ground loops.

• The monitor output is short-circuit proof. Internal resistance is 8 k.

Connection

Figure 7.7 Current Monitor Wiring

PSP-KONSTANTER Einstellung

USET = Usoll ISET = 0 A OUTPUT ON SEtUP/dP YIF/AnIF/AI_I on

+OUT

-OUT

Usi

Last

PSP-KONSTANTER Einstellung

USET = Usoll ISET = 0 A OUTPUT ON SEtUP/dP YIF/AnIF/AI_I on

+OUT

-OUT

2k?

Last

REF 02

OUT +5V

SIG 3

9 AGND 2 10 +15V 11 AGND 1 12 Uext + 13 Uext - 14 Iext + 15 Iext - 16 U MON 17 I MON 18

Usu

SIG 3

9 AGND 2 10 +15V 11 AGND 1 12 Uext + 13 Uext - 14 Iext + 15 Iext - 16 U MON 17 I MON 18

Usi

+15V 11 AGND 1 12 Uext + 13 Uext - 14 Iext + 15 Iext - 16 U MON 17 I MON 18 SENSE + 19 SENSE - 20

+OUT

-OUT

Last

Rbel

Umu

AGND 2 10 +15V 11 AGND 1 12 Uext + 13 Uext - 14 Iext + 15 Iext - 16 U MON 17 I MON 18 SENSE + 19 SENSE - 20

+OUT

-OUT

Last

Rbel

Umi

GMC-I Messtechnik GmbH 33

7.8 Trigger Inputs

Function

• Floating optocoupler inputs TRG 1 and TRG 2 allow for

remote control of a device function with the help of a binary signal.

• The function to be controlled is selected by manually or digitally configuring the trigger mode (SEtUP/dPYIF/AnIF/trG 1 txt or SEtUP/dPYIF/AnIF/trG 2 txt).

Connection

• Connect the control signal between TRG 1(2) + and TRG 1(2) –.

Signal level:

Low signal: – 18 V Us  + 1 V High signal: + 4 V  Us  + 18 V Current consumption: Is = (Us – 2 V) / 1.47 k

• The TRIGGER input can be driven with the + 15 V output at the analog interface via any desired switch (figure 7.8).

Warning!

Trigger inputs TRG 1 and TRG 2 are floating inputs and are functionally isolated from the output current circuit. This functional isolation is not equivalent to “safety separation” as specified in electrical safety regulations.

Note

The trigger inputs are sampled by the digital control unit approximately every 10 ms. After a signal change has been detected, repeated querying ensues at short time intervals (suppression of switch bouncing and interference pulses). This means that:

• Trigger signal pulses must have a minimum duration of 14 ms in order to assure reliable recognition.

• A delay of 1 to 15 ms may occur between application of the control signal and triggering of the controlled function.

Connection

Figure 7.8 Controlling the Trigger Input with a Switching Element / Exter-

nal Signal

Trigger Function Setting Parameters

PSP-KONSTANTER Einstellung USET = Usoll ISET = Is oll OUTPUT ON T-MODE z OFF

+OUT

-OUT

Last

Rbel

PSP-KONSTANTER Einstellung USET = Usoll ISET = Isoll OUTPUT ON T-MODE z OFF

+OUT

-OUT

Last

Parameters Meaning

OFF Trigger input function is deactivated, trigger signals have no

effect.

OUT OUTPUT Trigger signal acts upon the OUTPUT: output on/off.

Low OUTPUT depends upon manual setting or programming

command.

Edge Low  High

OUTPUT remains OFF or OUTPUT is switched OFF.

High OUTPUT is OFF and cannot be activated (neither manually

nor by means of a program command).

Edge High  Low

The OUTPUT is activated; exception: OTP or OVP.

SQS Step

function

Memory recall (step-by-step sequence control)

Edge Low  High

Start trigger signal

High – The trigger signal is a high pulse with a duration of less

than 800 ms.

– A high pulse with a duration > 1.0 s resets the address

counter to the start address at any point in time, and execution begins with the next trigger signal.

Edge High  Low

The high  low edge of the (short) trigger signal results in step-by-step control of the currently selected sequence, regardless of the specified time and number of repetitions. Recall of the memory’s contents begins with the START address. Each trigger signal increasers the address by 1, until the STOP address is reached. The next pulse once again causes execution of the contents of the START address.

SEQ SEQUENCE Sequence execution control

Edge Low  High

The SEQUENCE function is started beginning with the start address (SEQUENCE GO).

Edge High  Low

Ends sequence execution by jumping to the stop address

LLO LOCAL

LOC KED

Front panel control disabling

Low All front panel controls are functional. High All front panel controls are disabled except for the mains

switch, and activation is not possible with the LOCAL key.

MIN MINMAX Storage of Min-Max values for U and I is controlled when

the MINMAX function is activated (MINMAX ON)(UI_ ON). Low The Min-Max function is active. Edge

Low  High

The Min-Max function is deactivated. Values in the

Min-Max memories remain unchanged. High The Min-Max function is inactive. Edge

High  Low

Values in the Min-Max memories are reset and replaced

with momentary output values.

The Min-Max function is activated.

AIX Analog Input Uext, Iext

Low Analog setpoints not switched through High Analog setpoints switched through

AIU Analog Input Uext

Low Analog setpoint not switched through High Analog setpoint switched through

AII Analog Input Iext

Low Analog setpoint not switched through High Analog setpoint switched through

34 GMC-I Messtechnik GmbH

7.9 Parallel Connection

If output current from a single KONSTANTER is insufficient for the respective application, the outputs of any number of KONSTANTERs can be parallel connected.

Attention!

If outputs with different nominal voltages are parallel connected, all outputs must be limited to the lowest utilized nominal voltage value. The ULIM parameter is used to select this setting.

7.9.1 Direct Parallel Connection

Function

• Easiest way to provide the consumer with more current than is available from a single r KONSTANTER.

• KONSTANTERs with differing nominal output voltages can be used. However, all voltage setpoints must be set or limited to the same value.

• This setup is less suitable for the constant voltage regulating mode.

Wiring

Figure 7.9.1a Wiring for Direct Parallel Connection

Settings

• Deactivate all outputs.

• Adjust voltage setpoint USET at all parallel connected KONSTANTER to approximately the same value:

• Uset = USET1 = USET2 = USET3 = ... = USETn

• Adjust current setpoints ISET such that they add up to the desired cumulative current value Iset:

• Iset = ISET1 + ISET2 + ISET3 + ... + ISETn

• Activate the outputs.

Functional Principle

• After switching the outputs on, load current is initially supplied by the KONSTANTER with the highest voltage setting.

• If load resistance is continuously reduced, load current is continuously increased.

• When load current reaches the ISET value selected for the output which is momentarily supplying power to the consumer, current limiting is activated at this output.

• If load resistance is further decreased, current regulation reduces output voltage until the voltage value of the output with the next lower setting is reached.

• As of this point in time, this KONSTANTER also supplies a portion of the load current.

• This procedure is continued until load current triggers current regulating at the output with the lowest voltage setting when the setpoint value for cumulative current is reached.

• This output maintains constant load current until the load resistor is short-circuited.

Figure 7.9.1b U / I Diagram for Direct Parallel Connection

Notes

• Slightly varying voltages occur at the individual outputs as a result of setting tolerances.

• In the event of larger voltage differences, an electronic sink is activated at the outputs with lower voltage settings.

• The sink controller attempts to reach the lower voltage value by limiting power consumption.

• Neither the KONSTANTERs nor the power consumer are damaged as a result.

• If problems occur with the measurement of load current, the KONSTANTERs should be linked by means of master-slave parallel connection.

• The outputs can be activated and deactivated commonly by connecting the trigger inputs in parallel (see figure 7.9.1a, optional connection) or series (setting: “SEtUP/dPYIF/AnIF/ trG-1 out”).

PSP-KONSTANTER 3 Einstellung USET = Usoll ISET 1 OUTPUT ON (

SEtUP/dPYI F/AnIF/trG-1 out)

+OUT

-OUT

optional

PSP-KONST ANTER 1 Einstellung

USET = Usoll ISET 3 OUTPUT ON (

SEtUP/dPYIF/AnIF/trG-1 out)

+OUT

-OUT

Last

PSP-KONSTANTER 2 Einstellung

USET = Usoll ISET 2 OUTPUT ON (

SEtUP/dPYIF /AnIF/trG-1 out)

+OUT

-OUT

GMC-I Messtechnik GmbH 35

7.9.2 Master-Slave Parallel Connection

Function

As opposed to direct parallel connection, master-slave parallel connection offers significant advantages:

• Equally suitable for voltage and current regulation

• Output parameters (output voltage, cumulative current limiting) are set entirely by the master device.

• All interconnected KONSTANTERs are equally loaded.

Wiring

• Define one power supply as a master device.

• Connect master and slave devices as shown in figure 7.9.2.

• Connect the output leads.

• Balance the individual output current values. Keep connector cables as short as possible, and use the largest possible conductor cross-section. Execute balancing with Rsym (set potentiometer to approx. 2 k).

Figure 7.9.2 Wiring for Master-Slave Parallel Connection

Settings

Initial power-up:

• Short circuit the load.

• Switch the master on (mains) and configure settings:

(Pon rcl)

if desired OUTPUT off USET = Uset

Desired output voltage

ISET = Iset / n

Iset: desired cumulative output current; n: number of devices Only valid if nominal data are identical for all devices, see notes.

• Switch slave 1 on (mains) and configure: (Pon rcl) if desired USET > USET master

The voltage setpoint at the slave devices must be set at least 1% higher than at the master device, e.g. to maximum.

ISET = 0 A Deactivate the ISET rotary knob if applicable

by setting ILIM to 0 A.

SEtUP/dPYIF/AI_I on

Activates the analog current setpoint

• Use the same procedure for additional slave devices.

• Press the OUTPUT ON key at the slave(s) and the master.

• Check output current at the slave device displays.

• Output current at each of the slaves can be precisely matched

to master output current by adjusting Rsym.

• Changes appear immediately at the respective display.

• Undo short-circuiting of the load.

From this point on, setting and regulation of (cumulative) output parameters are controlled entirely by the master device.

Power-up after initial settings:

Devices can be switched on and off in any desired order.

Functional Principle

The master controls output current of the downstream device (slave 1) via the slave’s current control input with the help of the current monitoring signal.

Slave 1 functions as a master device for the next downstream slave (slave 2), and so forth.

Cumulative output current is thus always proportional to master output current.

Notes

KONSTANTERs with differing nominal values: The KONSTANTER with the smallest nominal voltage value must

always be used as the master device. The voltage setting range of the other KONSTANTERs must be

limited to this lowest value using the ULIM parameter.

General

• The current regulator’s dynamics can be slowed down in order to achieve more stable performance. Select the following setting to this end “SEtUP/dEVic/CFG d/C dYn L”.

• Rsym can be implemented as a 2 k fixed resistor; adjusting error for the slaves is increased somewhat as a result.

• A wire connection can be used instead of Rsym and Rminus can be omitted, if no precise setpoint value is required for cumulative output current. In this case, each slave device supplies slightly more current than the master device.

• If analog interface connector cables and the sensing leads are longer than 1 meter, shielded cable should be used. The shield is connected to the ground terminal on the housing or to - OUT.

• The master device’s measuring function acquires commonly generated output voltage for all interconnected KONSTANTERs, but only acquires its own output current.

• The individual measured current values for each of the interconnected KONSTANTERs must be added together in order to arrive at cumulative output current.

• In order to assure that the slaves’ OUTPUT ON status is activated along with the master’s OUTPUT ON status via the signal output and trigger input circuit as shown in figure 7.9.2, “SEtUP/dPYIF/AnIF/SiG-(x1) out” must be selected at the master and “SEtUP/dPYIF/AnIF/trG-(x2) out” must be selected at the slaves, (x1) and (x2) in example 1. The master’s OUTPUT ON status can be optionally controlled via the trigger input – setting at the master: “SEtUP/dPYIF/AnIF/trG-(x3) out”, (x3) in example 1.

PSP-KONSTANTER 3 Einstellung USET = Unenn ISET = 0 A OUTPUT ON SEtUP/dPYIF/AnIF/AI_I on (

SEtUP/dPYIF/AnIF/ trG-1 out)

+OUT íOUT

PSP-KONSTANTER 2 Einstellung USET = Unenn ISET = 0 A OUTPUT ON SEtUP/dPYIF/AnIF/AI_I on (

SEtUP/dPYIF/AnIF/ trG-1 out)

+OUT íOUT

PSP-KONSTANTER 1 Einstellung USET = Usoll ISET = Isoll/n OUTPUT ON (

SEtUP/dPYIF/AnIF/SIG-1 out)

(

SEtUP/dPYIF/AnIF/ trG-1 out)

+OUT íOUT

Last

optional

Rsym

5 k

Rminus

10 k

Rsym

5 k

Rminus

10 k

Slave 2 Master Slave 1

36 GMC-I Messtechnik GmbH

7.10 Series Connection

If output voltage from a single KONSTANTER is insufficient, or if you want to generate a  voltage, the outputs of several KONSTANTERs can be connected in series.

Warning!

Maximum allowable cumulative voltage for series connection is 240 V (or 480 V with grounded neutral point).

7.10.1 Direct Series Connection

Attention!

If outputs with differing nominal values are series connected, the highest selected current value is present at all outputs in the event of short-circuit. However, the internal reverse-voltage protection diode is only rated for nominal current of the respective device (see reverse voltage withstand under “Electrical Data”). For this reason, all current setpoints must be set to the lowest nominal current value of all interconnected devices.

The ILIM parameter is used to select this setting.

Function

• The easiest way to supply the consumer with more voltage than is available from a single KONSTANTER

•Easy wiring

• Less suitable for constant current regulating mode.

Wiring

Figure 7.10.1a Wiring for Direct Series Connection

Settings

• Deactivate all outputs.

• Adjust current setpoint ISET at all series connected KONSTANTER to approximately the same value:

• Iset = ISET1 = ISET2 = ISET3 = ... = ISETn

• Adjust voltage setpoints USET such that they add up to the desired cumulative voltage value Uset:

• Uset = USET1 + USET2 + USET3 + ... + USETn

• Activate the outputs.

Functional Principle

The sum of all individual output voltages is made available to the power consumer.

If load resistance is continuously reduced, all of the outputs deliver the same load current at first.

When load current reaches the lowest selected current setpoint value, current regulating is triggered at the respective output.

If load resistance is further reduced, this output maintains constant load current until its output voltage has dropped to 0 V.

If even further reduction of load current occurs, the affected output is forced by the other outputs to generate a negative voltage. As of approximately –0.5 V, the internal reverse-voltage protection diode becomes conductive.

Load current can once again climb, until current regulation is activated at the output with the next higher current setpoint value.

This procedure is continued until load current triggers current regulating at the output with the highest current setpoint value.

Current is held constant by this last output until short-circuiting occurs.

Figure 7.10.1b U / I Diagram for Direct Series Connection

Note

The outputs can be activated and deactivated commonly by connecting the trigger inputs in parallel (see figure 7.10.1a, optional connection) or series (setting: “SEtUP/dPYIF/AnIF/trG 1out”).

PSP-KONSTANTER 2 Einstellung

USET = Usoll ISET 1 OUTPUT ON (

SEtUP/dPYI F/AnIF/trG-1 out)

+OUT

-OUT

optional

PSP-KONSTANTER 1 Einstellung USET = Usoll ISET 3 OUTPUT ON (

SEtUP/dPYIF/AnIF/trG-1 out)

+OUT

-OUT

Last

- - - - = optionale Sensev erbindung

GMC-I Messtechnik GmbH 37

7.10.2 Master-Slave Series Connection

Function

As opposed to direct series connection, master-slave series connection offers significant advantages:

• Equally suitable for voltage and current regulation

• Output parameters (cumulative output voltage, current limiting) are set entirely by the master device.

• All interconnected KONSTANTERs are equally loaded.

Wiring

• Define one power supply as a master device.

• Connect master and slave devices as shown in figure 7.10.2.

• Connect the output leads to the series circuit phase terminals.

• Balance the individual output voltage values with Rsym.

Figure 7.10.2 Wiring for Master-Slave Series Connection

Settings

Initial power-up:

• Do not load the outputs (idle).

• Switch the master on (mains) and configure settings:

(Pon rcl) if desired OUTPUT off USET = Uset/n Uset: cumulative output voltage

n: number of devices Only valid if nominal data are identical for all devices, see notes.

ISET = Iset Current limit value

• Switch slave 1 on and configure:

(Pon rcl) if desired USET = 0 VThe USET rotary knob can be deactivated if

applicable by setting ULIM to 0 V.

ISET > ISETmaster

The current setpoint at the slave devices must be set at least 1% higher than at the master device, e.g. to maximum.

SEtUP/dPYIF/AI_U on

Activates the analog voltage setpoint

• Use the same procedure for additional slave devices.

• Press the OUTPUT ON key at the master.

• Check output voltage at the KONSTANTER displays.

• Output voltage at each of the slaves can be precisely matched to master output voltage by adjusting Rsym. Changes appear immediately at the respective display.

• Connect the load.

From this point on, setting and regulation of (cumulative) output parameters are controlled entirely by the master device.

Power-up after initial settings:

Devices can be switched on and off in any desired order.

Functional Principle

The master controls output voltage of the downstream KONSTANTER (slave 1) via the slave’s voltage control input with the help of the voltage monitoring signal.

Slave 1 functions as a master device for the next downstream slave (slave 2), and so forth.

Cumulative output voltage is thus always proportional to master output voltage.

Notes

KONSTANTERs with differing nominal values: The KONSTANTER with the smallest nominal current value must

always be used as the master device. The current setting range of the other KONSTANTERs must be

limited to this lowest value with the ILIM parameter.

General

• If analog interface connector cables and the sensing leads are longer than 1 meter, shielded cable should be used.

• The shield is connected to the ground terminal on the housing, or to –OUT.

General

• Rsym can be implemented as a 2 k fixed resistor; adjusting error for the slaves is increased somewhat as a result.

• If Rminus is omitted, the standard value for Rsym is increased to 122 k.

• If analog interface connector cables and the sensing leads are longer than 1 meter, shielded cable should be used. The shield is connected to the ground terminal on the housing or to - OUT.

• The same current value is available from all KONSTANTERs. For this reason, current measured at the master device is sufficient for the measurement of load current.

• The individual measured voltage values for each of the interconnected KONSTANTERs must be added together in order to arrive at cumulative output voltage.

• In order to assure that the slaves’ OUTPUT ON status is activated along with the master’s OUTPUT ON status via the signal output and trigger input circuit as shown in figure

7.10.2, “SEtUP/dPYIF/AnIF/SiG-(x1) out” must be selected at the master and “SEtUP/dPYIF/AnIF/trG-(x2) out” must be selected at the slaves, (x1) and (x2) in example 1. The master’s OUTPUT ON status can be optionally controlled via the trigger input – setting at the master: “SEtUP/dPYIF/AnIF/trG-(x3) out”, (x3) in example 1.

PSP-KONSTANTER 2 Einstellung USET = 0 V ISET = Inenn OUTPUT ON SEtUP/dPYIF/AnIF/AI_U on (

SEtUP/dPYIF/AnIF/trG-1 out)

+OUT íOUT

PSP-KONSTANTER 1 Einstellung USET = Usoll/n ISET = Isoll OUTPUT ON (

SEtUP/dPYIF/AnIF/SIG-1 out)

(

SEtUP/dPYIF/AnIF/trG-1 out)

+OUT íOUT

Last

optional

í í í í = optionale Senseverbindung

Rsym

5 k

Rminus

10 k

Slave Master

38 GMC-I Messtechnik GmbH

7.11 Varying the Internal Output Resistance Value

Function

In the voltage regulating mode, internal output resistance has a value of close to 0 .

The internal output resistance value can be increased for certain applications, for example simulation of long output cables or weak automotive batteries. The selected (open-circuit) output voltage is reduced in proportion to increasing load (figure 7.11 a)

Figure 7.11a Output Voltage with Reference to Load

Calculation

The following applies:

where  Rext  0 

where 0 Ri  1.11 

Figure 7.11b Wiring for Varying Internal Resistance

20k W

18k W R

ext

-----------------------------

=

ext

20k W

-------------

W 18k–=

PSP-KONSTANTER Einstellung

USET = Usoll ISET = Isoll OUTPUT ON

Analog Interface TRG 1 + 1

TRG 1 - 2 TRG 2 + 3 TRG 2 - 4 SIG 1 + 5 SIG 1 - 6 SIG 2 + 7 SIG 2 - 8 SIG 3 + 9 AGND 2 10 +15V 11 AGND 1 12 Uext + 13 Uext - 14 Iext + 15 Iext - 16 U MON 17 I MON 18 SENSE + 19 SENSE - 20

+OUT

-OUT

Last

ext

GMC-I Messtechnik GmbH 39

8 Descriptions of Operating Commands

All setting and query commands are described and listed alphabetically in the following pages.

Commands with an asterisk (*) are at the beginning of the list. Each heading includes the command, along with its abbreviation. Insofar as query commands exist (identified with a question mark

?), they are listed as well. The next line (with the hand symbol) indicates how the respective

command can be executed manually. If keys are required, they are mentioned as well.

The note “Menu” indicates that the respective command can be executed from the menu.

If no manual procedure for executing the command exists, this is indicated with a long dash (—).

Details on Memory Locations

Depending on the firmware version, a different number of memory lodations is available, see table below.

Function „General-RESET“ (manual operation only)

Function „General-RESET“ deletes the complete user memory: setup memory, sequence memory, interface settings.

The default values are set, see default settings of the respective setting commands.

The following data remain unchanged: Device balancing parameters, production/serial number as well as time and date setting.

Attention!

Before performing a „General-RESET“, we recommend that you note or save your setting parameters, e.g. via the STORE command.

To perform a „General-RESET“, press and hold the cursor keys



and

 during „POWER ON“ until „rdy“ blinks in the display.

*CLS – Clear Status

—

Function

The *CLS command clears all event registers and the status byte register, except for the MAV bit (M

essage AVailable). Any existing service requests are cancelled. Addressing status Unchanged Input and output buffers Unchanged

Service request SRQ Cleared Status byte register STB Cleared except for MAV bit Event registers ESR, ERA, ERB, ERC Cleared Enable registers ESE, ERAE, ERBE, ERCE, SRE, PREUnchanged Set or stored parameters Unchanged

The *CLS setting command also clears the error number list (first 3 parameters) in the response to the “ERROR? query command:

“ERROR 000,000,000,xxx”

Setting Command

Syntax: *CLS

*DDT, *DDT? – Define Device Trigger

—

Function

A list of commands including up to 80 characters can be entered to a register with the “define device trigger” command. The *DDT command list is executed after receiving the *TRG device message or the IEC bus command GET (GROUP EXECUTE TRIGGER). The content of the DDT register can be read out with the *DDT? query command. Maximum response string length: 80 characters.

Setting Command

Syntax: *DDT

command[/command

][/

command

] ...

|— max. 80 characters —–| Default setting or after RESET (*RST):

DDT memory cleared

Note: A slash (/) must be used as the delineating character between commands in the DDT string instead of a semicolon (;).

All specified device messages (setting and query commands) are allowable as parameters except for the *TRG command.

Query Command

Syntax: *DDT? Sample response string:USET 10;ISET 5.6;OUT ON

Note: The delineating slashes (/) appear once again as semicolons (;) in the response string.

Comments

In order to prevent the generation of query errors, a blank (space) is returned if the DDT register is empty.

If the maximum DDT string length is exceeded, all characters in excess of the allowable number are ignored and an execution error message is generated.

The received command list is not checked for correct syntax and limit values until the trigger command is received.

If an execution error occurs, the DDT register can be read out with the *DDT? command, but its content cannot be executed (execution error message is generated again).

The DDT register is not changed or cleared when the trigger command is executed.

Firmware Version Memory Locations

Version 003 12 SETUP memory locations

1536 SEQUENCE memory locations

Version 004 15 SETUP memory locations

1700 SEQUENCE memory locations

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*ESE, *ESE?, *PRE, *PRE?, *SRE, *SRE?, ERAE, ERAE?, ERBE, ERBE?, ERCE, ERCE?

– Enable registers

—

Function

The enable registers determine which bit(s) from the corresponding event or status byte register is/are capable of influencing the respective group message. The respective group message remains set (1 = TRUE), as long as at least one bit which has been enabled to this end has a status of TRUE.

This allows for selective enabling or disabling of an SRQ and/or the individual status message “IST” due to an occurred event (masking).

The device is equipped with six enable registers. They can be written to and read separately. Queries, the *CLS command and device functions do not cause any changes to the contents of these registers. They can be cleared by entering a value of “0” (e.g. *ESE 0). The enable registers are non-volatile, and are only cleared by means of device shutdown if the non-volatile PSC flag is set to 1.

n = decimal equivalent of register content (0  n  255).

Sample Setting Command

Syntax: *ESE n

Sample Query Command

Syntax: *ESE? Sample response string: *ESE 255

*ESR?, ERA?, ERB?, ERC? – Event Register Query

Menu (for ERA?, ERB?, ERC?)

Function

The event register provides information concerning events which have occurred within the device since the last query. They acquire and save status changes which have occurred for specific device functions. The corresponding bit is set in the event register when the respective event occurs.

For example, the CME command error bit is set in the ESR event standard register upon receipt of an incorrect programming command. This bit remains set, even if correct commands are subsequently transmitted to the device. The CME bit is not reset until the ESR register is queried.

The device is furnished with four 8-bit event registers, each of which can be individually queried. When an event register is queried, its content is deleted. The *CLS command (CLEAR STATUS) can be used to clear all event registers.

Each response consists of a whole number 0  n  255, where n corresponds to the decimal equivalent of the content of the respective register.

An enable register is assigned to each event register.

*IDN? – Device Identification Query

—

Function

In response to this query, the device identifies itself by providing information regarding manufacturer, type designation, serial number, hardware revision level and firmware revision level.

Query Command

Syntax: *IDN? Sample response string: “GMC-I GOSSEN-METRAWATT, PSP1500P060RU060P,xxxxxxxxxxxxxxx,01.004”

manufacturer, type,serial_number,hardware_revision,software_revision

Fixed response string length: 63 characters

*IST? – Individual Status Query

—

Function

Command for directly querying parallel poll information, derived from the status byte.

The status byte is not reset by this query.

Query Command

Syntax: *IST? Response string: 0 or 1

*LRN? – Device Settings Query (LEARN)

—

*LRN? reads out current device settings. *LRN? i (i = 1 through 12/15) reads out the respective device set-

tings which have been saved to setup memories 1 through 12/15 [for a more precise formulation refer to command *SAV 1 through 12/15].

Function

In response to the *LRN? query command, the device supplies a list of nearly all adjustable functions along with current parameter settings.

Query Command

Syntax: *LRN? Sample response string (after *RST):

“OUTPUT OFF;USET +000,000;ISET +000,000;PSET +01500.0;UL_L +000,000;UL_H +060,000;IL_L +000,000;IL_H +060,000;OVP ON;OVSET +080,000;OV_DELAY 00,000;OCP OFF;OCSET +080,000;OC_DELAY 00,000;POWER_ON RST;T_MODE OFF,OFF;ANALOG_IN OFF,

OFF;SINK ON;C_DYN R;MEAS_LPF 3;MINMAX

OFF;SIG123 OFF, OFF, OFF;SSET OFF;FSET

CLR;TDEF 00,001;TSET 00,000;START_STOP

0001.0001;REPETITION 000;DISPLAY UO, IO”

Variant: *LRN? i (i) = optional parameter, specifies address in setup memory

#i = 1 - 12/15. *LRN? i reads the “*LRN?” data record out of setup memory (01  i  12/15).

Fixed response string length: 390 characters

Designation Setting Command Query Command

Event standard enable reg. (ESE) *ESE

n *ESE?

Parallel poll enable register (PRE) *PRE

n *PRE?

Service request enable reg. (SRE) *SRE

n *SRE?

Event enable register A (ERAE) ERAE

n ERAE?

Event enable register B (ERBE) ERBE

n ERBE?

Event enable register C (ERCE) ERCE

n ERCE?

Designation Query Command

Event standard register (ESR) *ESR? Event register A (ERA) ERA? Event register B (ERB) ERB? Event register C (ERC) ERC?

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*OPC, *OPC? – Operation Complete Query

—

Function

The operation complete function (OPC) allows for synchronization of the controller and the device:

Information indicating whether or not the previous instructions in the command string have been processed can thus be evaluated.

There are two possible procedures:

Bit 0 is set in the *ESR register with the *OPC command.

Setting Command

Syntax: *OPC

A “1” is transmitted as a result following the *OPC? command.

Query Command

Syntax: *OPC?

Comment

Further evaluation options are described in the chapter entitled “Status and Events Management”.

*PSC, *PSC? – Power-On Status Clear

—

Function

The power-on status clear flag (PSC) determines whether or not the contents of the enable registers will be cleared when the device is shut down.

The PSC flag can be set and queried:

Setting Command

Syntax: *PSC n Value range: n = 0, 1 Default setting or after RESET (*RST):

Query Command

Syntax: *PSC? Sample response string: 0

Parameters List

Comment

The PSC flag setting is retained, even after the device has been switched off or execution of the *CLS command.

*RCL – Recalling Stored Settings

RCL

Function

Settings which have been previously saved to battery-backed memory with the *SAV command (SAVE) can be recalled and activated with *RCL (RECALL).

Remarks

The function for recalling a device setting from setup memory can be used for other commands by entering a text parameter (Rxx).

Example: POWER_ON R01 means that the memory content of setup memory 1 is recalled at power-up.

Setting Command

Syntax: *RCL n

Parameters List

Recalls a parameter set from setup memory. Setting parameters stored to the specified register number are used for the current device settings: The status which was active before the RCL n command was executed can be restored with the RCL 99 command.

*RST – Reset Device Settings to Default Values

ESC/LOCAL & 0

Function

After executing the reset function, the device is set to its basic default configuration (see the table entitled “Adjustable Functions and Parameters” in chapter 10.1).

Note: A period of approximately 30 seconds should be allowed to elapse after the *RST command, before the next command is executed.

Default settings:

OFF;SINK ON;C_DYN R;MEAS_LPF 3;MINMAX

OFF;SIG123 OFF, OFF, OFF;SSET OFF;FSET

CLR;TDEF 00,001;TSET 00,000;START_STOP

0001.0001;REPETITION 000;DISPLAY UO, IO”

UI_C_Set +000,000.+000,000.+000,000.+000,000

Setting Command

Syntax: *RST

Parameter

Content Meaning

0 Enable registers will not be cleared 1 Enable registers will be cleared

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*SAV – Saving Device Settings

SAVE

Function

Current device settings can be saved to battery-backed memory with the *SAV (SAVE) execution command.

Setting Command

Syntax: *SAV n

Parameters List

Comments

All data stored with the SAVE function are retained in batterybacked memory when the device is switched off.

*STB? – Status Byte Register Query

—

Function

Command for querying the status byte register (STB). The status byte register contains: – The status of group messages from the four event registers

(bits 1, 2, 3 and 5)

– The status of the output buffer (empty  MAV bit = 0,

not empty  MAV bit = 1)

– The status of MSS group messages masked with the SRE

enable register from internal bits 0 through 5

This query command has been replicated to a great extent for operation with a serial interface (RS 232 or USB).

a) With the *STB? command:

The response is a data string consisting of a whole number 16  n  127, where n corresponds to the decimal equivalent of the register’s content. With this querying method the value of n is always  16, because at least the response string was saved to the output buffer, and the MAV bit was thus set.

b) By means of serial polling (IEC bus only):

The device responds with its status byte as a “one byte message” in reply to the SPE (SERIAL POLL ENABLE) addressed interface command. With this querying method bit 6 indicates the RQS status, and is reset to “0” after completion of serial polling.

The *CLS (CLEAR STATUS) command clears the status byte register except for the MAV bit, and cancels any SRQ messages.

*TRG – Device Trigger Function

—

Function

A command or a list of commands which has been previously defined by means of the *DDT string (DEFINE DEVICE TRIGGER) is executed with this command.

The device accepts this command as a device message via all integrated PC interfaces.

Setting Command

Syntax: *TRG

Comments

If trigger action has not been defined (empty DDT memory), bit 4 (EXE, execution error) is set in the standard event register upon receipt of the device trigger command.

The *TRG command may not be used as part of the DDT command.

The DDT register is not changed or cleared when the trigger command is executed.

*TST? – Starting the Self-Test

—

Function

Upon receipt of the *TST? query command, the device starts a self-test and reads out test results to the output buffer as a response string.

The *TST? query generates a response of either “0” (= test passed) or “1” (= test failed). If the self-test is failed, the “TCE” bit is also set in event register C.

The following is checked:

Balancing Test

Testing is conducted to determine whether or not the device has been balanced. If the device has not been balanced, or if the balancing procedure was interrupted, error numbers 91 and 66 are read out .

Query Command

Syntax: *TST? Response string: 0 or 1

*WAI – Wait to Continue

—

Function

The *WAI command is of no significance for programming the KONSTANTER.

It serves to synchronize the interface protocol in accordance with the IEC 488.2 standard.

Setting Command

Syntax: *WAI

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ADJUST – Balancing / Calibration Function

Function

Attention!

This procedure replaces directly the reference parameters referring to the accuracy of the Konstanter. Please check carefully before starting this procedure. The factory settet adjustment was done with high precise instruments as shown in DAkkS calibration certificate.

When starting the adjust function, the right display shows the last presetted calibration date (format Y.MM.DD)

Attention!

This procedure may only be executed if no other power consumers are connected. They might otherwise be damaged, because the upper range limits are read out automatically (OUTPUT ON). The entire procedure can be executed either manually or PC controlled.

The following parameters can be balanced with this procedure: Voltage setpoint USET (offset value and upper range limit) and

measured voltage value UOUT (offset value and upper range limit). Current setpoint ISET (offset value and upper range limit) and

measured current value IOUT (offset value and upper range limit).

Sufficiently accurate measuring instruments for voltage and current are required for this procedure. The measured values must be entered as parameter W during the respective balancing step, either at the keypad or at the PC.

Appropriate error messages are generated and displayed as

UNCAL if balancing fails or if it is interrupted with the ADJUST EXIT command.

ADJUST Procedure

The following sequence must be adhered to: Uoff (offset value), Ufs (upper range limit), Ioff (offset value), Ifs (upper range limit)

Setting Commands

Voltage offset

Syntax: ADJUST Uoff The Konstanter selects a small voltage offset value. Read measured value w at the measuring instrument and transmit it to the Konstanter with the following command.

Syntax: ADJUST Uoff, w

Upper voltage range limit

Syntax: ADJUST Ufs The Konstanter sets output voltage to the upper range limit. Read measured value w at the measuring instrument and transmit it to the Konstanter with the following command.

Syntax: ADJUST Ufs, w

Current offset

Syntax: ADJUST Ioff The Konstanter selects a small current offset value.

The Konstanter must be short circuited via the ammeter or connected to a suitable resistive load for current balancing.

Attention!

Change the test setup for current measurement with a suitable ammeter. The measuring instrument must be capable of processing the maximum occurring current value.

Read measured value w at the measuring instrument and transmit it to the Konstanter with the following command.

Syntax: ADJUST Ioff, w

Upper current range limit

Syntax: ADJUST Ifs The Konstanter selects a small voltage offset value. Read measured value w at the measuring instrument and transmit

it to the Konstanter with the following command.

Syntax: ADJUST Ifs, w

After the procedure has been completed, the date from the internal clock is saved as a balancing date.

An error message is generated when the procedure is aborted or an error has occured. In the adjust menu an UNCAL is displayed instead of the adjust date. The adjust parameters are replaced by internal default values. The *TST? query generates a „1“. After a new „power on“ the last active adjust parameters including its actual date are refreshed and becomes active. The *TST? query generates a “0”.

Interrupting the balancing procedure

Syntax: ADJUST EXIT

ANALOG_IN, ANALOG_IN? – Connection of Analog Control Inputs Uext, Iext (Uset, Iset)

Function

This command allows for direct or linked connection of the analog control inputs for voltage and current.

The txt1 parameter determines the switching parameter for the Uext input, and the txt2 parameter applies to the Iext input.

The control inputs at the analog interface can be switched directly with the OFF and ON parameters.

The “ON/OFF” switching status can be set indirectly by entering the “SSET” parameter to the ANALOG_IN setting command, depending upon FSET (with the sequence function) or the SSET command.

When the switching statuses are queried, the momentary switching status, namely ON, OFF or SSET, is always returned as a response.

Note: While the PSET function is active, command signals Uext and Iext cannot be activated.

Setting Command

Syntax: ANALOG_IN txt1,txt2 Parameter txt1/txt2: OFF/ON/SSET Default setting or after RESET (*RST):

OFF

Query Command

Syntax: ANALOG_IN? Sample response string: ANALOG_IN OFF, OFF

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C_DYN, C_DYN? – Setting Current Regulating Dynamics

Function

This command makes it possible to adapt the control dynamics of the current regulator to inductive loads. Correct use of this command allows for optimization of the regulator for critical load circumstances.

Setting Command

Syntax: C_DYN txt

Parameters List

Query Command

Syntax: C_DYN? Sample response string: C_DYN R

CRA?, CRB? – Condition Register Query

Function

The condition register provides information concerning the momentary status of specific device functions at the time the query was executed. For example, if the output is switched to constant current regulation, the appropriate CCR bit is set in condition register A (CRA) (condition TRUE  condition bit = 1).

This bit remains set until the current regulating mode is exited. The condition register can be queried as often as desired during this time, without causing any change to its content. The corresponding bit is not reset until the output is no longer operating in the current regulating mode (condition FALSE  conditions bit = 0).

The device is furnished with an 8-bit condition register. It can be read out, but direct overwriting and deletion are not possible.

The response consists of a whole number 0  n  255, where n corresponds to the decimal equivalent of the register’s content.

Query Command

Syntax: CRA? Condition register A

Query Command

Syntax: CRB? Condition register B

DCL, SDC – Device Clear Function

—

Function

The device clear command causes clearing of the input and output buffers at the computer interfaces (e.g. requested data which have not been picked up). Interface-internal waiting times and lockouts are cleared. The device is ready to receive data. Addressing status Unchanged

Input and output buffers Cleared Service request SRQ Unchanged Status byte register MAV bit = 0, otherwise unchanged Event registers ESR, ERA, ERB, ERC Unchanged Enable registers ESE, ERAE, ERBE, ERCE, SRE, PREUnchanged Set and stored parameters Unchanged

This command is processed: a) As a device message via all computer interfaces

(setting command) 'DCL' or 'SDC'

Syntax: DCL or Syntax: SDC

b) Via the IEC bus interface as addressed command SDC

(SELECTED DEVICE CLEAR)

c) Via the IEC bus interface as universal command DCL (DEVICE

CLEAR) for all bus users

DISPLAY, DISPLAY? – Function Switching for Displays A and B

Function

The display function makes it possible to control displays A and B separately in accordance with the table below. If this view is exited, e.g. by selecting another parameter with SELECT, or with the rotary encoder or via the menu, the display returns to this configuration after the specified time has elapsed (DDC: see the table entitled “Adjustable Functions and Parameters” in chapter 10.1).

Setting Command

Syntax DISPLAY txt1,txt2 Default setting or after RESET (*RST):

UO, IO

Parameters List

The ON or OFF status does not change the selected display function.

Query Command

Syntax DISPLAY? Sample response string: DISPLAY UO,IS

Parameter

Content Meaning

txt

R Full current regulating dynamics, for minimal inductive loads L Reduced current regulating dynamics, for higher inductive loads or

in case of parallel connection

Designation Query Command

Condition Register A (CRA) CRA? Condition register B (CRB) CRB?

D7: SEQB Sequence function active D6: OTP2A Overtemperature shutdown (OTP LEVEL 2) active D5: OTP1A Temperature signal (OTP LEVEL 1) active D4: OVPA OVP signal active D3: OCPA OCP signal active D2: OL Overload D1: CCR Output in current regulating mode D0: CVR Output in voltage regulating mode

D7: TCB TST or ADJUST/CAL function active D6: T2A Signal at trigger input 2 of the analog interface active 2) D5: T1A Signal at trigger input 1 of the analog interface active 2) D4: ACLL AC LEVEL LOW (line voltage < 182 Vrms) D3: 0 D2: S123A Signal output SIG1 or/and signal output SIG2 or/and signal output

SIG3 at the analog interface active

D1: CMPC

Measured current value not within the current tolerance band specified by UI_C_SET w1.w2.w3.w4 divided by w3.w4; ENABLE: ?MINMAX ON?

D0: CMPV

Measured voltage value not within the voltage tolerance band specified by UI_C_SET w1.w2.w3.w4 divided by w1.w2; ENABLE: ?MINMAX ON?

Status Description

Display A txt1

Display B txt2

ON 7-segment display activated XX

dpy-A/B

OFF 7-segment display deactivated XX

dpy-A/B

UO Output voltage Uout (default value) X —

dpy-A

US Voltage setpoint Uset X —

dpy-A

PS Power setpoint Pset X —

dpy-A

IO Output current Iout (default value) — X

dpy-b

IS Current setpoint Iset — X

dpy-b

PO Output power Pout — X

dpy-b

— Display switching time — —

ddc

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ERROR? – List of Error Messages

Function

The three last different error messages can be read out with this command. The content of the μC-RSTSRC registers is added as the fourth parameter

The error list can be reset with the *CLS command. A description of the errors is included in the section entitled

“System Messages”.

Query Command

Syntax ERROR?

Sample response string: ERROR 031,098,000,001

ERROR n1,n2,n3,n4

Explanation of the example:

Parameters List

FSET, FSET? – Sequence Function Parameter

Function

In addition to USET, ISET and TSET, FSET is the fourth parameter for defining the sequence memory.

It determines which function will be executed upon transition to the respective memory location.

Execution of the parameter is only possible during the course of a running sequence (similar to the TSET parameter).

When the FSET parameter is transmitted, the current FSET setting is determined and is saved to the respective specification by means of the SM_STORE command.

The parameters for the FSET command are also part of the STORE command.

Setting Command

Syntax: FSET txt Default setting or after RESET (*RST):

CLR

Query Command

Syntax: FSET? Sample response string: FSET NF

Parameters List see at the top of the next column.

Parameters List

* Exception: If the memory address is ide ntical with the stop address of the sequence,

the parameter values for USET and ISET are used as the final setting values when the sequence is completed or aborted.

GTL – GO-TO-LOCAL Function (as from Firmware Version 005)

ESC/LOCAL in „remote“ State

Function

The „GTL“ command leads to a return of device control to front plate operation, similar to activating the [LOCAL] key.

For serial interfaces (RS232 or USB), the command should not be chained with a query command as the remote state is restored in this case, i.e. when query data are issued.

This command is processed via all computer interfaces as device message.

Setting Command

Syntax: GTL

IFC – Resetting the IEC Bus Interface (interface clear)

—

Function

The IEC bus interface at the device is reinitialized with the IFC (INTERFACE CLEAR) bus interface command, and is returned to the standard default settings.

Addressing status Not addressed Input and output buffers Unchanged Service request SRQ Unchanged Status byte register STB Unchanged Event registers ESR, ERA, ERB, ERC Unchanged Enable registers ESE, ERAE, ERBE, ERCE, SRE, PRE

Unchanged

Set and stored parameters Unchanged

Setting Command

Syntax: IFC

Parameter

Content Meaning

n1 031 Command error, CME (last error) n2 098 Max. limit overflow (next to last error) n3 000 No further errors n4 001 The content of internal register μC-RSTSRC is added as additional

information, although bits D7 through D5 are irrelevant. The value is not influenced by the “*CLS” command.

Parameter

Content Meaning

txt

CLR Empty memory location, is ignored/skipped during execution.

CLR in the data record of the stop address of a sequence switches the output off after the sequence has been completed.

NF Sequence values USET, ISET and TSET without additional function

(switching function) RU Voltage ramp, duration TSET or TDEF RI Current ramp, duration TSET or TDEF SOFF Additionally switches SSET to OFF S_ON Additionally switches SSET to ON AUOF Additionally switches analog input UEXT to OFF AUON Additionally switches analog input UEXT to ON AUSS Additionally switches analog input UEXT to SSET control AIOF Additionally switches analog input IEXT to OFF AION Additionally switches analog input IEXT to ON AISS Additionally switches analog input IEXT to SSET control Rxx Sequence chain; USET/ISET/TSET are ignored *; new device setup is

loaded from setup memory xx (see *RCL n command)

! Thus all settings and parameters saved to Rxx apply.

Additional chains are also possible, but without automatic return

upon reaching the stop address.

Value range: R01 to R12/15

Note: If a PSET function is active in the selected SETUP setting, the

SEQUENCE function will be aborted. Sxx Invoke subsequence; USET/ISET/TSET setting is ignored *;

! Only the START_STOP, REPETITION and TDEF parameters from

setup memory xx are used.

Automatic return to the main sequence when the stop address of

the subsequence is reached after the specified number of

repetitions has been completed.

No return occurs if continuous repetition has been selected for the

subsequence.

Maximum nesting depth: 1, Value range: S01 to S12/15

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IL_H, IL_H? – Upper Limit Value for Current Setting

Function

IL_H defines the upper setting limit (soft-limit) for current setpoint value Iset.

The limit can be used to assure that output current is not inadvertently set above a specified value.

The IL_H command corresponds to the ILIM command for the SSP6XN Konstanter series as an upper limit value.

Thus IL_H can also be replaced with ILIM. When the ILIM? query is executed, IL_H +XXX.XXX is

returned in response. Values outside of the value range (Iset  w  Inom) are not

accepted, and cause generation of an error message and setting of an error bit in event register ERC.2.

Inom is device-specific maximum nominal current. Entered numeric values are rounded off to device-specific

resolution.

Setting Command

Syntax: IL_H w Value range: Iset  w  Inom Default setting or after RESET (*RST):

w = Inom

Query Command

Syntax: IL_H? Sample response string: IL_H +XXX.XXX

Comments

The IL_H function is not active for setting output current by means of control signal Iext via the analog interface.

IL_L, IL_L? – Lower Limit Value for Current Setting

Function

IL_L defines the lower setting limit (soft-limit) for current setpoint value Iset.

The limit can be used to assure that output current is not inadvertently set below a specified value.

Values outside of the value range (0  w  Iset) are not accepted, and cause generation of an error message and setting of an error bit in event register ERC.2.

Inom is device-specific maximum nominal current. Entered numeric values are rounded off to device-specific

resolution.

Setting Command

Syntax: IL_L w Value range: 0  w  Iset Default setting or after RESET (*RST):

w = 0

Query Command

Syntax: IL_L? Sample response string: IL_L +XXX.XXX

Comments

The IL_L function is not active for setting output current by means of control signal Iext via the analog interface.

IMAX? – Maximum Measured Current Value

Function

The IMAX function reads out the highest output current value which was measured by the Iout measuring function and saved to Min-Max memory while the MINMAX function was set to ON.

If the measured current value has exceeded the measuring range limit at least once with the MINMAX function set to ON, “+OL” appears at the display for IMAX and “+999999.” is entered to the data string.

The Min-Max memory value can be reset to the momentarily measured value with MINMAX RST (for all 4 parameters at once).

Query Command

Syntax: IMAX? Sample response string: IMAX +XXX.XXX

IMIN? – Minimum Measured Current Value

Function

The IMIN function reads out the lowest output current value which was measured by the IOUT measuring function and saved to Min-Max memory while the MINMAX function was set to ON.

If the measured current value has fallen below the measuring range limit at least once with the MINMAX function set to ON, “–OL” appears at the display for IMIN and “–999999.” is entered to the data string. The Min-Max memory value can be reset to the momentarily measured value with MINMAX RST (for all 4 parameters at once).

Query Command

Syntax: IMIN? Sample response string: IMIN +XXX.XXX

IOUT? – Querying the Momentary Current Value

SELECT B

Function

The IOUT? function reads out the momentary measured value for output current.

The upper range values may change minimally after balancing! If the measuring range is exceeded or fallen short of, “+/–OL” is

displayed or “+/–999999” is entered to the data string.

Query Command

Syntax: IOUT? Sample response string: IOUT +XXX.XXX

Type Current Measuring Range Resolution

Nominal current

Min.

[A]

Max.

[A]

60 A –032.766 +098.300 A 2 mA

120 A –065.532 +196.600 A 4 mA

180 A –098.298 +294.900 A 6 mA

GMC-I Messtechnik GmbH 47

ISET, ISET? – Current Setpoint

SELECT B or rotary encoder Iset

Function

The output current setpoint is set with ISET. The ISET? query returns the momentarily selected current setpoint as a response.

Values outside of the value range (0  IL_L  w  IL_H  Inom) are not accepted, and cause generation of an error message and setting of an error bit in event register ERC.2.

Entered numeric values are rounded off to device-specific resolution.

Setting Command

Syntax: ISET w Value range: 0  IL_L  w  IL_H  Inom Default setting or after RESET (*RST):

w = 0

Query Command

Syntax: ISET? Sample response string: ISET +XXX.XXX

MEASURE, MEASURE? – Measuring Function (not currently used)

MEAS_LPF, MEAS_LPF? – Low-Pass Filter for Measured Value Acquisition

Function

Selection can be made from amongst four time constants for evaluation of the measuring signal. This selection applies equally to the measured quantities for both voltage and current.

Setting Command

Syntax: MEAS_LPF n Value range: n = 1, 2, 3, 4 Default setting or after RESET (*RST):

n = 3

Query Command

Syntax: MEAS_LPF? Sample response string: MEAS_LPF n

Parameters List

MINMAX, MINMAX? – Min-Max Storage for Measured U and I Values

Function

The MINMAX function makes it possible to save minimum and maximum measured voltage and current values to memory. The saved values, UMIN, UMAX, IMIN and IMAX, can then be displayed or queried via the interfaces.

The “MINMAX ON” setting is also a prerequisite for the “tolerance band function” (setting command UI_C_SET w1,w2,w3,w4 for the reference values).

Setting Command

Syntax: MINMAX txt Parameter txt: OFF/ON/RST Default setting or after RESET (*RST):

OFF

Query Command

Syntax: MINMAX? Sample response string: MINMAX OFF

Parameters List

MODE? – Momentary Control Mode of the Power Output

LED

Function

The device responds with the momentarily active operating mode (control mode) in response to the MODE? query command.

Query Command

Syntax: MODE? Sample response string: MODE CV

Parameters List

Device

Typ e

Setting Range Setting Resolution

Nom.

Current [A]

Min.

[A]

Max.

[A]

Remote

[A]

Manual

[A]

60 0.000 60.000 0.001 0.001 120 0.000 120.000 0.002 0.002/0.010 180 0.000 180.00 0.003125 0.003125/0.0125

Parameter

Content Meaning,

Time Constant

11 ms 2 10 ms 3 50 ms 4 400 ms

txt Description

OFF Storage of Min-Max values deactivated,

stored values remain unchanged

ON Storage of Min-Max values activated,

enables tolerance band function for CRB.0/1, ERC.0/1. If the SIG outputs are correspondingly configured, a switching signal can be generated at the analog interface.

RST Contents of Min-Max memory are reset, i.e. are replaced with the

momentary measured value for the corresponding parameter: Umin = Uout Umax = Uout Imin = Iout Imax = Iout

Parameter

Content Meaning LED

txt

OFF Output deactivated — CV Constant voltage regulating mode CV + OUTPUT CC Constant current regulating mode CC + OUTPUT CP Constant power regulating mode

Overload (power limiting)

PLim + OUTPUT

48 GMC-I Messtechnik GmbH

OCP, OCP? – Overcurrent Protection

Menu, LED

Function

The OCP function (over current protection) determines how the power output will respond if load current climbs to the selected OCSET value.

The OCP function is used in addition to current regulation, whose setpoint is specified with ISET or via the analog control input.

The OCP function protects connected power consumers against continuous overcurrent, although a higher current value is required intermittently. The function also makes it possible to activate another device configuration in case of overcurrent.

Load current is compared with the OCSET value generated with an integrated D-A converter by means of an autonomous comparator, and is evaluated.

The ensuing reaction is shown in the following table. Activation of the OCP function is indicated at the front panel by

means of the “OCP ON” LED. If OCP has caused shutdown, this is additionally indicated by the “OCP” LED.

Setting Command

Syntax: OCP txt Parameter txt: OFF/ON/R01 ... R12/15 Default setting or after RESET (*RST):

OFF

Query Command

Syntax: OCP? Sample response string: OCP OFF

Parameters List

OCSET, OCSET? – Overcurrent Protection Trigger Value

SELECT B, Menu

Function

The triggering threshold reference value required for the OCP function is set with OCSET.

Setting Command

Syntax: OCSET w Value range: OCSETmin  w  OCSETmax Default setting or after RESET (*RST):

OCSETmax

Query Command

Syntax: OCSET? Sample response string: OCSET +080.000

OC_DELAY, OC_DELAY? – Overcurrent Protection Trigger Delay

Function

Desired response delay for the OCP function is set with OC_DELAY. Delay time is specified in seconds.

If output current drops to below the OCSET value before OC_DELAY expires, the shutdown sequence is interrupted and restarted the next time the threshold is exceeded.

Setting Command

Syntax: OC_DELAY w Value range: 0  w  65,535 Default setting or after RESET (*RST):

Query Command

Syntax: OC_DELAY? Sample response string: OC_DELAY XX.XXX

Parameter

Content Meaning

txt

OFF OCP function is inactive ON OCP function activated:

The output is shut down if output current is equal to or exceeds the specified OC_SET limit value for a duration of OC_DELAY.

Rxx Instead of a shutdown, recall of a device configuration from setup

memories 01 through 12/15 can be activated with R01 ... R12/15.

Device

Typ e

Setting Range Setting Resolution

Nom.

Current [A]

OCSETmin.

[A]

OCSETmax.

[A]

Remote

[A]

Manual

[A]

60 3.00 80.00 0.02 0.02 120 6.00 160.00 0.05 0.05 180 9.00 240.0 0.1 0.1

GMC-I Messtechnik GmbH 49

OUTPUT, OUTPUT? – Switching the Power Output On and Off

OUTPUT / LED

Function

The power output can be activated and deactivated with the OUTPUT function.

Activation: OUTPUT ON: Current and voltage values of “0” are specified initially for a period

of approximately 2 ms with activated output for the transition from the “highly resistive” condition. The output is then adjusted to the selected voltage and current setpoints.

Deactivation: OUTPUT OFF: The power output is deactivated and rendered highly resistive

with the OUTPUT OFF command. Differentiation must be made as to whether the internal dynamic sink is on or off (setting command: SINK on / SINK OFF).

However, the output terminals are not electrically enabled.

OUTPUT OFF with SINK ON

The setpoints for voltage and current are set to 0 V and 0 A. The sink is activated for approximately 300 ms. The sink discharges the output capacitors as far as possible. The sink is then switched off and the output becomes highly resistive as a result.

OUTPUT OFF with SINK OFF

The setpoints for voltage and current are set to 0 V and 0 A. The power output is deactivated and becomes highly resistive as a result.

The output capacitors are discharged via the connected load only. Output voltage is correspondingly reduced.

Setting Command

Syntax: OUTPUT txt Parameter txt: OFF/ON Default setting or after RESET (*RST):

OFF

Query Command

Syntax: OUTPUT? Sample response string: OUTPUT ON

Parameters List

Comments

If the output is switched off by a trigger signal in the “T_MODE OUT” operating mode, i.e. in the off state, the signal has higher priority.

An OUTPUT ON command is not executed, and bit 4 is set in event register B (OUTE).

“Err 073” also appears briefly at the display as a warning in the event of manual operation.

Additional functions which may influence the status of the output include:

– OTP, overtemperature protection – OVP, overvoltage protection – OCP with activated “OCP ON” parameter – SEQUENCE function – T_MODE function – POWER_ON –*RCL

OVP, OVP? – Overvoltage Protection

Menu, LEDs

Edit Formulation

Function

The OVP function (over voltage protection) specifies how the power output will respond if output voltage is equal to or exceeds the selected OVSET value.

The OVP function is an overriding protective function and is independent of the voltage and current regulators.

The OVP function protects connected power consumers against continuous overvoltage, although higher voltage is required intermittently. The function also makes it possible to activate another device configuration in case of overvoltage.

Output voltage is compared with the OVSET value from the OVP-DAC by an autonomous comparator.

The ensuing reaction is shown in the following table, and execution can be delayed by means of OV_DELAY.

Where OV_DELAY = 0, the power output is switched off directly by the OVP comparator.

Activation of the OVP function is indicated at the front panel by means of the “OVP ON” LED.

If OVP has caused shutdown, this is additionally indicated by the “OVP” LED.

Setting Command

Syntax: OVP txt Parameter txt: OFF/ON/R01 ... R12/15 Default setting or after RESET (*RST):

Query Command

Syntax: OVP? Sample response string: OVP OFF

Parameters List

OV_DELAY, OV_DELAY? – Overvoltage Protection Triggering Delay

Function

Desired response delay for the OVP function is set with OV_DELAY. Delay time is specified in seconds.

If output voltage drops to below the OVSET value before OV_DELAY expires, the shutdown sequence is interrupted and restarted the next time the threshold is exceeded.

Where OV_DELAY = 0, the OVP comparator switches the power output off directly as well.

Setting Command

Syntax: OV_DELAY w Value range: 0  w  65,535 Default setting or after RESET (*RST):

Query Command

Syntax: OV_DELAY? Sample response string:

OV_DELAY XX.XXX

Parameter

Content Meaning

txt

OFF Output is switched off,

OUTPUT LED off, control mode LEDs are off

ON Output is switched on,

OUTPUT LED lights up, control mode LED lights up

Parameter

Content Meaning

txt

OFF OVP function inactive ON OVP function activated:

The output is shut down if output voltage is equal to or exceeds the specified OV_SET limit value for a duration of OV_DELAY.

Rxx Instead of a shutdown, recall of a device configuration from

setup memories 01 through 12/15 can be activated with R01 ... R12/15.

50 GMC-I Messtechnik GmbH

OVSET, OVSET? – Overvoltage Protection Trigger Value

SELECT A and Menu

Function

The triggering threshold reference value required for the OVP function is set with OVSET.

Setting Command

Syntax: OVSET w Value range: OVSETmin  w  OVSETmax Default setting or after RESET (*RST):

OVSETmax

Query Command

Syntax: OVSET? Sample response string: OVSET +080.000

Parameters List

Comments

Amongst other causes, overvoltage protection can be triggered by:

–USET  OVSET (due to manual setting, programming

command, memory recall, sequence run or Uset control signal

to the analog interface) – Sensing leads with reversed polarity – Interrupted output lead during sensing mode operation – Interference from the power consumer – Parallel connected voltage sources – Dynamic output voltage overshooting – Device malfunction or defect

POUT? – Querying Momentary Output Power

SELECT B and Menu

Function

The POUT? function reads out momentary output power as the product of output voltage and output current.

Query Command

Syntax: POUT? Sample response string: POUT +XXXXX.X

Measuring range: Due to the fact that the UOUT and IOUT measuring functions are utilized, the respective measuring ranges apply for power measurements as well. If one or both of the measured quantities UOUT and IOUT violate their respective measuring ranges, the product of POUT (UOUT x IOUT) is displayed as “–OL” or “OL”, or “+/–999999” is entered to the data string.

POWER_ON, POWER_ON? –

Response After Power On

Function

The POWER_ON function determines the status of device settings after mains power has been switched on.

Setting Command

Syntax: POWER_ON txt Parameter txt: RST/SBY/RCL/R01 ... R12/15 Default setting or after RESET (*RST):

RST

Query Command

Syntax: POWER_ON? Sample response string: POWER_ON RST

Parameters List

PSET, PSET?

SELECT A

Function

The PSET Function

is activated by preselecting a PSET parame-

ter value < Pnom. The PSET operating mode is indicated by the active green „CP-

LED“

, query „MODE?“ leads to reply „MODE CP“. (The condition and event register queries „CRA?“ and „ERA?“ invariably supply the control status of the power section and are to be interpreted accordingly.)

By using the measuring functions, setting values for voltage and current are temporarily calculated and read out to the digital-analog converters for the specified load. The „digital control range“ is limited by settings USET and ISET. If the setpoint value PSET cannot be achieved for the connected load, it is additionally indicated by the LED „CV“ or „CC“.

Attention!

Activation of PSET automatically switches off the analog command inputs Uext and Iext, i. e. corresponding to „ANALOG_IN OFF, OFF“. The PSET function cannot be combined with the SEQUENCE function!

Setting Command

Syntax: PSET w Value range: 0  w  Pnom

w = Pnom (no power control)

Default setting and/or after RESET (*RST):

w = Pnom

Query Command

Syntax: PSET?

PSET +XXXXX.X

Sample response string:

PSET +01499.9

„Power control“, available as from firmware version 004

After „*RST“, the maximum possible output power of the device can be queried with query command PSET?. Depending on whether the device is operated with 115 Vac or 230 Vac mains power, the query supplies Pnom/2 or Pnom.

Parame-

ters

For:

Device

Typ e

Setting Range Setting resolution

Nom.

Voltage [V]

OVSETmin.

[V]

OVSETmax.

[V]

Remote

[V]

Manual

[V]

w 60 3.00 80.00 0.02 0.02

Parameter

Content Meaning

txt

RST RESET:

Defined default settings are utilized  default settings

SBY STANDBY:

Same device settings as before shutdown, but the power output remains inactive (OUTPUT OFF)

RCL RECALL:

Same device settings as before shutdown – power output remains in previous state

Rxx Recall a device configuration saved to setup memory under XX

GMC-I Messtechnik GmbH 51

REPETITION, REPETITION? – Number of Repetitions for Sequence Function

Function

The REPETITION parameter determines how many times a sequence will be repeated, which is defined by the current START and STOP addresses.

i is an optional parameter which addresses the setup memory (1 to 12/15) to which the repetition value will be written, and from which it will be read.

Setting Command

Syntax: REPETITION n(,i) Value range: 0  n  255 Default setting or after RESET (*RST):

Query Command

Syntax: REPETITION? (i) Sample response string: REPETITION n

Parameters List

RLOAD? – Load Resistance

Menü

Function

The RLOAD function supplies the value of the current load resistance as a quotient of output voltage and output current.

Query Command

Syntax: RLOAD? Sample response string:

RLOAD +XXX.XXX

Measuring range: As the UOUT and IOUT measuring functions are used, the corresponding measuring range limits apply.

If the output is inactive (OUTPUT OFF) or one (or both) measuring quantities UOUT and/or IOUT exceed or fall short of the measuring range limits or if the mathematical value cannot be displayed in the numerical format „XXX.XXX“, RLOAD = UOUT / IOUT is shown for the quotient in the „OL“ display and „999999.“ is entered in the data string.

SEQUENCE, SEQUENCE? – Automatic Sequential Recall of Stored Setting Values, Sequence Status Query

Function

The sequence function makes it possible to generate voltage and current profiles over a period of time, for example in order to create test signals.

The required setting values and parameters are saved to the appropriate memory to this end.

Values are saved with the commands SM_STORE ADR or STORE ADR,USET,ISET,TSET,FSET. 1536/1700 memory locations are available for this function. If dwell time is set to TSET = 0, an overriding TDEF becomes effective.

The following control commands determine the course of the sequence. The sequence is defined by means of START and STOP addresses (START_STOP xxxx,xxxx), and the number of repetitions (REPETITION n).

Note: With appropriate configuration, sequence control (GO/STOP or START/STEP) is also possible via the trigger inputs (analog interface). The SEQUENCE function cannot be combined with the PSET function!

Setting Command (sequence control command)

Syntax: SEQUENCE txt

Control Parameters List

If an addressed memory location is empty (no executable content), the sequence jumps to the next higher executable memory location.

Step-by-step control (remote / manual) If the T_MODE parameter is set to “RCL”, the step pulse can be specified by means of an external signal applied to the appropriate trigger input at the analog interface.

A memory address can be specified as an additional, optional parameter for these commands, as of which sequence execution is started or resumed. Example: SEQUENCE CONT,n where start address  n  stop address

Query Command (sequence status)

Syntax: SEQUENCE? Sample response string: SEQUENCE txt,n1,n2,n3

Query parameters list

Parameter Content Meaning

0 Continuous repetition 1 to 255 Number of sequence repetitions

Param-

eter

Content Meaning

txt

OFF Jump to stop address and end the sequence run or step-by-step

control; same as stop. If there is no content (CLR), the power output is switched (OUTPUT OFF).

GO Start sequence run as of start address HOLD Pause, suspend sequence at current memory location CONT

Resume automatic sequence run with next executable memory location

STRT

Jump to start address and execute its content. Power output is switched on, step-by-step control is possible.

STEP

1, 2

Execute the next valid memory location. In the case of step-by-step control, the “repetition” parameter is ignored, i.e. a subsequence, for example, is executed only once.

BSTP

The “repetition” parameter is ignored, subsequences are skipped, ramp functions are executed just like “NF”

STOP

Jump to stop address and end the sequence run or step-by-step control. If there is no content (CLR), the power output is switched (OUTPUT OFF).

ESC Sequence is ended using the momentary setting without jumping to

the final value.

Param-

eter

Content Meaning – Sequence Status

txt RDY Device in initial state,

sequence run completed

HOLD Sequence run paused

RUN Sequence run is active

n1 000

001 ... 012/015

The run is part of the main sequence. The run is part of a subsequence; defined in the specified setup memory location (1 to 12/15).

n2 001 ... 255

999

Remaining number of repetitions, continuous repetition

n3 0001 ... 1536/

1700

Momentarily executed memory location

 

STEP

BACKSTEP

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SIG123, SIG123? –

Analog Interface Signal Outputs

Function

Two floating signal outputs (SIG 1 and SIG 2) and one signal output with reference to AGND 2 (SIG 3) are provided at the analog interface. They can be used to trigger control functions in the application. Different device functions and statuses can be assigned to these signals.

Setting Command

Syntax: SIG123 txt1,txt2,txt3 Default setting or after RESET (*RST):

OFF

Query Command

Syntax: SIG123? Sample response string: SIG123 txt1.txt2.txt3

Parameters List

The signal outputs can be logically linked using the comparison function. The reference values are defined by parameters w1, w2, w3 and w4 from the UI_C_SET command. Momentary measured voltage and current values are compared with these parameters and evaluated.

SINK, SINK? – Sink Function On/Off

Function

The device is equipped with a sink function for improved dynamic characteristics, which can be activated or deactivated as desired. After an OUTPUT OFF command, the sink is deactivated (if initially activated) after a specified period of time (300 ms).

Setting Command

Syntax: SINK txt Parameter txt: OFF/ON Default setting or after RESET (*RST):

Query Command

Syntax: SINK? Sample response string: SINK txt

SM_LOAD – Load Sequence Memory Location

Function

The content of a memory location can be loaded in a targeted fashion with the SM_LOAD command. The USET, ISET, TSET and FSET parameters are entered to the current device settings during this procedure. USET and ISET are read out at the power output in the case of OUTPUT ON.

Setting Command

Syntax: SM_LOAD n Value range: 1  n  1536/1700

SM_STORE – Store to Sequence Memory Location

Function

The contents of the USET, ISET, TSET and FSET parameters from the current device settings can be written to the specified memory location with the SM_STORE command.

The range of memory locations between the start and stop addresses can be cleared with the SM_STORE 0 command.

These memory locations are then in the empty state (CLR).

Setting Command

Syntax: SM_STORE n Value range: 1  n  1536/1700

Special case n = 0 (delete range)

SSET, SSET? – Command for an Assigned Switching Function (signal level switching function)

Menu, SSET Key

Function

The SSET switching status can be controlled with the SSET setting command or with the corresponding FSET parameter (S_ON/SOFF) of the sequence function. The SSET switching function can then be linked with analog interface functions for switching the signal outputs SIGx (command: SIG123) and/or for controlling the analog inputs Uext and Iext (command: ANALOG_IN).

Setting Command

Syntax: SSET txt Parameter txt: OFF/ON Default setting or after RESET (*RST):

OFF

Query Command

Syntax: SSET? Sample response string: SSET txt

Parameter

Content Meaning –

Assignment

Level

txt n

OFF SIG n: direct off Passive high ON SIG n: direct on Active low OUT OUTPUT ON

OUTPUT OFF

Passive high Active low

MODE OFF or CV

CC or OL

Passive high Active low

SEQ READY/STOP

RUN

Passive high Active low

SSET OFF

Passive high Active low

U_LO

meas

w1

meas

 w1

Passive high Active low

U_HI

meas

 w2

meas

w2

Passive high Active low

I_LO

meas

w3

meas

 w3

Passive high Active low

I_HI

meas

 w4

meas

w4

Passive high Active low

Parameter

Meaning in UI_C_SET Command

w1 Lower voltage reference value

w2 Upper voltage reference value

w3 Lower current reference value

w4 Upper current reference value

GMC-I Messtechnik GmbH 53

START_STOP, START_STOP? – Memory Location Start and Stop Addresses for the Sequence Function

Function

The start and stop addresses of the sequence to be executed are defined with the START_STOP command. The STOP address must be equal to or greater than the START address.

i is an optional parameter which addresses the setup memory (1 to 12/15) to which the START-STOP values will be written, and from which they will be read.

Setting Command

Syntax: START_STOP n1,n2(,i) Value range: 1  n1  n2 1536/1700 Default setting or after RESET (*RST):

1.1

Query Command

Syntax: START_STOP? (i) Sample response string: START_STOP n1,n2

STORE, STORE? – Transferring Parameters Directly to Memory

(Menu – in sequential order of entry)

Function

This command is used to write the USET, ISET, TSET and FSET parameters directly to a memory location in order to set up a sequence. The parameters must be entered one after the other via the edit menu.

Setting Command

Syntax: STORE n,w1,w2,w3,txt

Parameters List

Query Command

Syntax: STORE? Syntax: STORE? n Syntax: STORE? n1,n2 Syntax: STORE? n1,n2,tab

The response includes the entire parameter set for each memory location: STORE n,w1.w2.w3.txt

Parameters List

Depending upon which query command is selected, one of the following responses is be generated:

TDEF, TDEF? – Default Time for SEQUENCE Function

Function

The TDEF parameter setting defines the dwell time default setting for a voltage-current value pair to be recalled. TDEF is used instead of TSET if TSET has not been set to any specific value, but rather to 0 [s].

Note: Use of TDEF is advantageous if one or several identical dwell times occur within a given sequence whose values need to be changed frequently.

i is an optional parameter which addresses the setup memory (1 to 12/15), to which the TDEF value will be written, and from which it will be read.

Setting Command

Syntax: TDEF w(,i) Value range: 0.001  w  65.535 [s] Default setting or after RESET (*RST):

0.001

Query Command

Syntax: TDEF? (i) Sample response string: TDEF w

TIMEDATE, TIMEDATE? – Programmable System Clock (RTC)

Function

System date and time in accordance with ISO 8601 can be entered to the device with this command. The date entered here is used for device balancing (ADJUST command).

Setting Command

Syntax: TIMEDATE yyyy-mm-ddThh:mm:ss Default setting or after RESET (*RST):

Remains unchanged

Query Command

Syntax: TIMEDATE? Sample response string:

TIMEDATE yyyy-mm-ddThh:mm:ss

TIMEDATE 2007-10-01T08:00:05

The specified format must be adhered to: yyyy: year (2000 ...) – Delimiter (“–”) mm: month (01 ... 12) – Delimiter (“–”) dd: day (01 ... 31) T: delimiter (“T”) hh:mm:ss hours:minutes:seconds

Parameter

Content Formats /

Meaning

n 1 to 1536/1700 Memory address w1 0  w1  Unom +nnn.nnn [V] voltage setpoint USET

w2 0  w2  Inom +nnn.nnn [A] current setpoint ISET w3 0

0 [s]  w3  65.535 [s]

w3 = 0: TSET executes TDEF nn.nnn [s] dwell time TSET

txt Content from table for FSET FSET function

This parameter is identical to the setting options for the FSET command.

Command Value Range Meaning – Response Store? Query contents of a memory range from the start

address to the stop address of the current sequence

Store? n n = 1 to

1536/1700

Query contents of memory location n

Store? n1,n2 n1, n2

= 1 to 1536/ 1700 n2 n1

Query contents of a memory range from address n1 to address n2

Store? n1,n2,tab n1, n2

= 1 to 1536/ 1700 n2 n1

Query contents of a memory range from address n1 to address n2 Delimiter between output parameters: tabulator character (hex code: 09h), decimal delimiter = decimal comma (hex code: 2Ch), line break (hex code: 0Ah)

54 GMC-I Messtechnik GmbH

T_MODE, T_MODE? – Function Selection for the Trigger Inputs

Function

Two floating trigger inputs are provided at the analog interface, whose action can be defined independent of each other. In this way, control functions can be triggered at the device from the application.

Depending upon which function is selected, the trigger input is level or edge controlled.

Note: Detailed descriptions of the control level are included in the section entitled “Analog Interface”.

Setting Command

Syntax: T MODE txt1,txt2 Default setting or after RESET (*RST):

OFF

Query Command

Syntax: T MODE? Sample response string: T MODE txt1.txt2

Parameters List

The associated TRGx LED lights up along with the selected trigger input if the trigger parameter is not set to OFF and the trigger input is active.

TSET, TSET? – Memory Location Specific Dwell Time for the SEQUENCE Function

Function

The TSET setting parameter defines the memory location specific dwell time for reading out a pair of voltage and current values for a sequence. If no specific value, but rather 0 [s], is assigned to TSET, TDEF is used as a default value for execution of the sequence function.

Setting Command

Syntax: TSET w Value range: 0,000  w  65,535 [s] Default setting or after RESET (*RST):

0.000

Query Command

Syntax: TSET? Sample response string: TSET w

Comments

If dwell times of greater than 65.535 seconds are required, this can be achieved by specifying the same voltage and current values for several consecutive memory locations.

Another possibility is to invoke subsequences with the corresponding number of repetitions.

UI_C_SET, UI_C_SET? – Reference Values for Uout/Iout Tolerance Band Function

Attention!

While uploading the basic settings using the „write to device“ function in the „Notes“ tab of the Soft Front Panel the saved parameters of the function „UI_C_SET“ will be replaced by the current configuration.

Function

This function makes it possible to set up reference values for voltage and current, which are continuously compared with momentary measured values. In this way, for example, checking is possible in order to determine whether or not actual voltage and current values lie within the specified range (tolerance band function). The results of this comparison can be queried in condition register CRB?, bits 0 and 1, and in event register ERC?, bits 0 and 1. The results can also be assigned to signal outputs SIG123 at the analog interface with the help of the SIG123 txt1.txt2.txt3 command.

Setting Command

Syntax: UI_C_SET w1,w2,w3,w4 Value range w1, w2: 0  w1 < w2  Unom [V] Value range w3, w4: 0  w3 < w4  Inom [A] Default setting or after RESET (*RST):

0,Unom,0,Inom

Query Command

Syntax: UI_C_SET? Sample response string: UI_C_SET w1,w2,w3,w4

Parameters List

UL_H, UL_H? – Upper Limit Value for Voltage Setting

Function

UL_H defines the upper setting limit (soft-limit) for voltage setpoint value Uset. The limit can be used to assure that output voltage is not inadvertently set above a specified value.

The UL_H command corresponds to the ULIM command for the SSP6XN Konstanter series as an upper limit value.

Thus UL_H can also be replaced with ULIM. When the ULIM? query is executed, UL_H +XXX.XXX is

returned as a response. Values outside of the value range (Uset  w  Unom) are not accepted, and cause generation of an error message and setting of an error bit in event register ERC.2. Unom is the device-specific maximum nominal voltage. Entered numeric values are rounded off to device-specific resolution.

Setting Command

Syntax: UL_H w Value range: Uset  w  Unom Default setting or after RESET (*RST):

w = Unom

Query Command

Syntax: UL_H? Sample response string: UL_H +XXX.XXX

Comments

The UL_L function is not active for setting output current by means of control signal Iext via the analog interface.

Parameter

Content Meaning

Level controlled

LED

txt n

OFF Trigger input function deactivated X OUT Trigger input acts upon the output: output

on/off

XOUTPUT

SQS RECALL: memory recall (step-by-step),

edge controlled, time dependent (functions like SEQUENCE STEP)

SEQ STS

SEQ SEQUENCE: sequential memory recall

(functions like SEQUENCE GO)

XSEQ STS

LLO LOCAL LOCKED: front panel disabling X

LCL LOC KED

MIN MINMAX: min-max memory for measured

values

AIX Analog input UEXT, IEXT X Uext ON AIU Analog input UEXT X Uext ON AII Analog input IEXT X Iext ON

Parameters Format Meaning w1 nnn.nnn [V] Lower voltage reference value w2 nnn.nnn [V] Upper voltage reference value w3 nnn.nnn [A] Lower current reference value w4 nnn.nnn [A] Upper current reference value

GMC-I Messtechnik GmbH 55

UL_L, UL_L? – Lower Limit Value for Voltage Setting

Function

UL_L defines the lower setting limit (soft-limit) for voltage setpoint value Uset.

The limit can be used to assure that output voltage is not inadvertently set below a specified value.

Values outside of the value range (0  w  Uset) are not accepted, and cause generation of an error message and setting of an error bit in event register ERC.2.

Unom is the device-specific maximum nominal voltage. Entered numeric values are rounded off to device-specific

resolution.

Setting Command

Syntax: UL_L w Value range: 0  w  Uset Default setting or after RESET (*RST):

w = 0

Query Command

Syntax: UL_L? Sample response string: UL_L +XXX.XXX

Comments

The UL_L function is not active for setting output voltage by means of control signal Uext via the analog interface.

UMAX? – Maximum Measured Voltage Value

Function

The UMAX function reads out the highest output voltage value which was measured by the Uout measuring function and saved to Min-Max memory while the MINMAX function was set to ON.

If the measured voltage value has exceeded the measuring range limit at least once with the MINMAX function set to ON, “+OL” appears at the display for UMAX and “+999999.” is entered to the data string.

The Min-Max memory value can be reset to the momentarily measured value with MINMAX RST (for all 4 parameters at once).

Query Command

Syntax: UMAX? Sample response string: UMAX +XXX.XXX

UMIN? – Minimum Measured Voltage Value

Function

The UMIN function reads out the lowest output voltage value which was measured by the Uout measuring function and saved to Min-Max memory while the MINMAX function was set to ON.

If the measured voltage value has fallen below the measuring range limit at least once with the MINMAX function set to ON, “–OL” appears at the display for UMAX and “–999999.” is entered to the data string.

The Min-Max memory value can be reset to the momentarily measured value with MINMAX RST (for all 4 parameters at once).

Query Command

Syntax: UMIN? Sample response string: UMIN +XXX.XXX

UOUT? – Querying the Momentary Voltage Value

SELECT A

Function

The UOUT? function reads out the momentary measured value for output voltage.

The upper range values may change minimally after balancing! If the measuring range is exceeded or fallen short of,

“+/–OL” is displayed or “+/–999999” is entered to the data string.

Query Command

Syntax: UOUT? Sample response string: UOUT +XXX.XXX

USET, USET? – Voltage Setpoint Value

SELECT A and Rotary Encoder Uset

Function

The output voltage setpoint is set with USET. The USET? query returns the currently selected voltage setpoint as a response.

Values outside of the value range (

0  UL_L  w  UL_H  Unom

) are not accepted, and cause generation of an error message and setting of an error bit in event register ERC.2.

Entered numeric values are rounded off to device-specific resolution.

Setting Command

Syntax: USET w Value range: 0  UL_L  w  UL_H  Unom Default setting or after RESET (*RST):

w = 0

Query Command

Syntax: USET? Sample response string: USET +XXX.XXX

WAIT – Additional Waiting Time

—

Function

Command for specifying an additional waiting time between execution of the two commands. This function can be used to add additional waiting time within a data string (linked commands) during processing/execution.

For example, this allows for defined programming of a specified power-on status within a command string with execution time in the ms range.

Setting Command

Syntax: WAIT w Value range: 0.001 s  w  65.535 s

Caution

During the execution of waiting time receive data are not processed and the input buffer is blocked, i.e. displays are not refreshed during waiting time.

Example

ISET 5; OUTPUT ON; USET 10; WAIT 0.100; USET 5

Type Voltage Measuring Range Resolution

Nominal voltage

Min.

[V]

Max.

[V]

60 W -016.384 +098.300 A 2 mV

Device

Typ e

Setting Range Setting Resolution

Nom.

Voltage [V]

Min.

[V]

Max.

[V]

Remote

[V]

Manual

[V]

60 0.000 60.000 0.001 0.001

56 GMC-I Messtechnik GmbH

9 Status and Events Management

The device is equipped with special registers which can be queried by the controller in order to detect programming errors (e.g. receipt of an incorrect command), device states (e.g. output set to voltage regulating mode) or occurred events (e.g. output deactivated by a protective function).

Structure

Figure 9: Status and Events Management

DI08 DI07

DI05 DI04 DI03 DI02 DI01

PON

0 CME EXE DDE QYE

0 OPC

OTP2I OTP2A OTP1A

OVPA

OCPA

CP CCR CVR

7 6 5 4 3 2 1 0

7 6 5 4

7 6 5 4 3 2 1 0

SEQB OTP2A OTP1A

OVPA

OCPA

CP CCR CVR

ESR MAV ERA ERB ERC

7 6 5

3 2 1 0

1 0

1 0 1 0

1 0

1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0

1 0 1 0 1 0 1 0 1 0 1 0

1 0 1 0 1 0 1 0 1 0 1 0 1 0

RQS MSS

1

Service Request Generation

Parallel Poll Function

DI06

MSS

Service Request Function

rsv

RQS

SRQ

SRQLED

*SRE?

Serial Poll

*STB?

*SREn

(0 n 255)

*PRE?

*IST?

ist

*ESEn (0 n 255)

ERAE?ERA?CRA?

ERAEn (0 n 255)

ERB?

ERBE?

ERBEn (0 n 255)

*OPC

*OPC?

*PREn

(0 n 255)

PPC

Command

*ESR?

*ESE?

1 0

*PSC?

*PSCn (n=0;1)

Clear ESE, SRE, PRE

Condition Register

Event Register

Enable Register

Status Byte Register

Enable Register

Query Command

TRUE = 1 FALSE = 0

Status/

Bit no. Priority

Setting Command

128

64 32 16

2 1

Power On

Command Error

Execution Error

Query Error

Operation Complete

Message Available

Sequence Active

Overtemperature Warning

Overload/power limiting

Overvoltage

Constant Current Regulation Constant Voltage Regulation

Parallel Poll

0

Overtemperature Shutdown

SEQI

T2A T1A

OUTE

0 S3A S2A S1A

Output-On Error

Limit Error

Device Dependent Error

TCE

REMC

ACLC

SEQE LIME

CCE CVE

7 6 5 4 3 2 1 0

TCB T2A T1A

ACLL

S123A

CMPC

CMPV

1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0

1

ERCE?ERC?CRB?

ERCEn (0 n 255)

Self-Test Error

TRG 1 Active

Signal Output Active

AC Level Low

0

TRG 2 Active

Overcurrent

Remote Local Change

Sequence Execution Error

SIG 3 Active SIG 2 Active SIG 1 Active

1

Event

n = decimal equivalent of

e.g. *ESE?

e.g. *ESEn

At Least One

Uout Out of Tolerance,

Iout Out of Tolerance,

UI_C_SET (w1/2)

UI_C_SET (w3/4)

GMC-I Messtechnik GmbH 57

Meaning of Register Contents Description of the Registers

Condition Registers (CRA, CRB)

The individual bits in the conditions registers reflect the current status of a specific device function:

0 = status does not apply (FALSE) 1 = status applies (TRUE) The content of the condition register can be read out with the help

of a query command, but cannot be directly edited or cleared.

Event Registers – Standard Event Register (ESR), Event Registers (ERA, ERB, ERC)

The event registers acquire and save changes to specific device functions. The corresponding bit in the event register is set (1 = TRUE) if the associated function:

– Changes from FALSE to TRUE (with input ) or – Changes from TRUE to FALSE (with input ).

The four event registers can be queried individually. The content of an event register is cleared when it is queried. An enable register is assigned to each event register.

Enable Registers – Standard Event Enable Register (ESE), Event Enable Registers (ERAE, ERBE, ERCE), Service Request Enable Register (SRE), Parallel Poll Enable Register (PRE)

The enable registers determine which bit(s) from the associated register or status byte register is (are) capable of influencing the respective group message (masking). The respective group message remains set (1 = TRUE), as long as at least one bit enabled to this end has a status of TRUE.

The six enable registers can be written to and queried separately. The content of the registers is not changed by queries. Enable registers ERAE, ERBE and ERCE are set to zero when the device is switched off. Enable registers ESE, SRE and PRE are only cleared as a result of shutdown if the PSC bit is set to 1.

Status Byte Register (STB)

The status byte register contains: – The statuses of the group messages from the three event

registers with bits 1, 2, 3 and 5

– The status of the data output buffer with bit 4

(empty  MAV = 0, not empty  MAV = 1)

– The status of group message MSS consisting of bits 1, 2, 3, 4

and 5, masked by enable register SRE, with bit 6

– Bits 0 and 7 are not used and are always set to “0”.

Register contents can be read out: –With the *STB? query command or – In the case of IEC bus control, with the “Serial Poll” interface

command. In this case, bit 6 shows the RQS status, which is reset (0) after serial polling has been completed.

The *CLS setting command clears all of the event registers and the status byte register, with the exception of the MAV bit, and cancels any pending SRQ message.

Power-On Status Clear Bit Error

The power-on status clear bit determines whether or not the content of enable registers ESE, SRE and PRE will be cleared when the device is switched off.

The PSC bit can be set and queried: Set: *PSC nn = 0: ESE, SRE and PRE are not cleared

n = 1: ESE, SRE and PRE are cleared

Query: *PSC? Response: “0” or “1” The PSC bit setting also remains unchanged after the device is

switched off, or after the *CLS command has been executed.

Operation Complete Bit (OPC)

See *OPC and *OPC? commands for a description of the respective function.

Meaning

ACLC AC-LEVEL CHANGED (line voltage range has changed H  L, L  H) ACLL AC level Low (line voltage < 182 V

rms

)

CCE Measured current values are outside of the tolerance band specified by

UI_C_SET w1.w2.w3.w4 divided by w3.w4; ENABLE: “MINMAX ON” CCR Output is (was) in current regulating mode. CVR Output is (was) in voltage regulating mode. CME Unknown error, syntax error, standardized value limits for numeric

parameters have been exceeded. CMPC Compare current: current value not within current tolerance band specified by

UI_C_SET w1.w2.w3.w4 divided by w3.w4; ENABLE: “MINMAX ON” CMPV Compare voltage: voltage value not within voltage tolerance band specified by

UI_C_SET w1.w2.w3.w4 divided by w1.w2; ENABLE: “MINMAX ON” CVE Measured voltage values outside of tolerance band specified by

UI_C_SET w1.w2.w3.w4 divided by w1.w2; ENABLE: “MINMAX ON” DDE Internal device error is pending EXE Command-specific parameter limits exceeded, incompatibility of a command

or a parameter with a current operating state. LIME Limit error:

Error message after setting command for USET, ISET, UL_L, UL_H, IL_L, IL_H:

a) Setting range UL_L USET UL_H or IL_L ISET IL_H exceeded; or

b) Measuring range exceeded during voltage or current measurement

c) Limit errors may also occur during a sequence.

Note regarding examination of limit and setting values. MAV Finished message after query command: The requested information is ready

for pick-up at the data output buffer. OCPA Output deactivated by overcurrent protection (OCP function).

Switch back on with OUTPUT ON. CP Overload message: Power limiting has been triggered. OPC Finished message: The commands preceding the *OPC command have been

processed (synchronization). OTP1A Overtemperature warning: The device is overheated, e.g. due to inadequate

ventilation. If overheating is further increased, the output is switched off

when the OTP2A threshold is reached. The OTP2A shutdown threshold is

approximately 5° C higher than the OTP1A warning threshold. OTP2A Overtemperature message and shutdown: The device is overheated, e.g. due

to inadequate ventilation. The output is deactivated when this message is

generated. The OUTPUT ON setting command is ignored as long as this

condition persists, and causes setting of the OTP2A bit in the event register. OTP2I Ready message after OTP2A overtemperature message: The device has

cooled back down. If the POWER-ON function is set to standby or reset, the

output remains deactivated; if set to recall, automatic restart ensues. OUTE Output error: Error message, power output can not be activated. Activation of

the output is disabled by an internal hardware status, or is locked by means

of the OUTPUT OFF signal at the trigger input of the analog interface.

Display: “Err 73” OVPA Overvoltage protection has been triggered, the output has been deactivated.

Switch back on with OUTPUT ON. PON Device was intermittently switched off, or an intermittent mains failure has

occurred. QYE Error message after addressing as talker: A message is not (yet) ready for

pick-up at the output buffer. REMC Status change: REMOTE  LOCAL (manual operation ensues) S1A SIG 1, active signal has occurred S2A SIG 2, active signal has occurred S3A SIG 3, active signal has occurred S123A

Signal output

SIG 1

or/and

SIG 2

or/and

SIG 3

at the analog input is active SEQB Status message: The sequence function is active (run, halt). SEQI Finished message: The sequence function is finished or has been aborted

(inactive) (ready). SEQE Error message resulting from the sequence function. T1A A signal has occurred at trigger input

TRG 1 of the analog interface with a

setting of: trigger mode  oFF T2A A signal has occurred at trigger input

TRG 2 of the analog interface with a

setting of: trigger mode  oFF TCB TST or ADJUSTCAL function active TCE Self-test error or error during ADJUST has occurred

58 GMC-I Messtechnik GmbH

10 Table of Operating and Query Commands

10.1 Adjustable Functions and Parameters

Setting Command

Parameter Meaning Value Range / Selection

Default

Setting After

RESET *RST

Manual

Remote

Display and Interface Settings

(see chapter 6, main menu level SETUP DISPLAY & INTERFACE)

Addr n Set device address for IEEE 488 (interface

configuration)

0 n 30 unv X

bAUd

txt RS 232 transmission speed Set via menu selection, default setting: 9600 baud.

The following values can be selected manually: 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14,400, 19,200, 28,800, 38,400, 57,600 or 115,200 [baud]

unv X

DB RS 232 data bits 7 or 8, set via selection menu, default setting: 8 unv X PB RS 232 parity bit Set via menu selection, default setting: none

The following values can be selected manually: nonE, EVEn or odd

unv X

SB RS 232 stop bit 1 or 2, Default setting: 1 unv X

bAUd

txt USB transmission speed

(DB = 8, PB = no, SB = 1)

Set via menu selection, default setting: 115,200 baud. The following values can be selected manually: 9600, 14,400, 19,200, 28,800, 38,400, 57,600 or 115200 [baud]

unv X

DDC n Display switching time Set via menu selection, default setting: 10 s. The following values

can be selected manually: 5, 10, 15, 20, 30, 45, 90 or 180 [s]

unv X

General Commands and Settings *CLS Clear Status —X *DDT txt Define Device Trigger txt Command string with up to 80 characters,

delimiter for commands is slash (/) instead of semicolon (;)

—X

*ESE n Standard Event Status Enable 0 n 255, n = decimal equivalent of register content — X *OPC Operation Complete —X *PRE n Parallel Poll Enable Register Enable 0 n 255, n = decimal equivalent of register content — X *PSC n Power-On Status Clear n = 0, 1 — X *RCL n Recall a device setting stored to a setup memory

location (1 through 12/15)

1 n 12/15*; Special case n = 99 means undo after *RST, *RCL #

—XX

*RST Reset device to default values Default X X *SAV n Save current device settings to a setup memory lo-

cation (1 through 12/15)

1 n 12/15* — X X

*SRE n Service Request Enable 0 n 255, n = decimal equivalent of register content — X *TRG Trigger for executing *DDT functions — X *WAI Wait to continue —X

DCL / SDC Device clear function —X ERAE n Device Dependent Event Register A Enable 0 n 255, n = decimal equivalent of register content — X ERBE n Device Dependent Event Register B Enable 0 n 255, n = decimal equivalent of register content — X ERCE n Device Dependent Event Register C Enable 0 n 255, n = decimal equivalent of register content — X

* /15 or /1700, respectively as from firmware version 004

GMC-I Messtechnik GmbH 59

Abbreviating commands: Abbreviated commands are identified with boldface letters. Letters not printed in boldface can be omitted. Example: “OUTPUT ON” = “OU ON” As a rule, letters can be entered in upper or lower case.

Stringing commands together: Several commands is a single data string must be separated by semicolons (;). Example: “USET 12; ISET 8.5; OUTPUT ON” Formats for numeric parameters:

m, n: Whole number (integer); w: Whole number, fixed or floating decimal point number with or without exponent. Examples: “12.5”, “0012.5”, “1.25E1”, “+1.25 e+01”

* /15 or /1700, respectively as from firmware version 004

Devise-Specific Settings ADJUST

(CAL)

txt(,w) Balancing/calibration function UOFF / UFS / IOFF / IFS / (EXIT), 0 w respective balancing limit.

The specified order for the procedure must be adhered to! “EXIT”  UNCAL, abort with error message

—XX

ANALOG_IN txt1,txt2

Connection of analog control inputs U(Uext), U(Iext)

OFF / ON / SSET OFF X X

C_DYN txt Setting for current regulating dynamics R / L R X X DISPLAY txt1,txt2 Digital display function switching txt1: ON / OFF / UO /US / PS

txt2: ON / OFF / IO / IS / PO

UO IO

FSET txt Sequence function parameter CLR / NF / RU / RI / SOFF / S_ON / AUOF / AUON / AUSS / AIOF /

AION / AISS / R01 ... R12/15* / S01 ... S12/15*

CLR X X

IL_H (ILIM) w Upper limit value for current setting Iset w Inom [A] Inom X X IL_L w Lower limit value for current setting 0 w Iset [A] 0 X X ISET w Current setpoint [A] IL_L w IL_H [A] 0 X X MEAS_LPF txt Low-pass filter for measured value acquisition 1 / 2 / 3 / 4 3 X X MINMAX txt Min-max storage for measured U and I values OFF / ON / RST

“ON”  enable tolerance band function for CRB.0/1, ERC.0/1, SIGx_OUT

OFF X X

OC_DELAY w Overcurrent protection triggering delay 0.000 w 65.535 [s] 0 X X OCP txt Overcurrent protection OFF / ON / R01  R12/15* OFF X X OCSET w Overcurrent protection trigger value OCSETmin (3) [A] w OCSETmax (80 A) [A] 80 A X X OUTPUT txt Switch power output on and off OFF/ ON OFF X X OV_DELAY w Overvoltage protection triggering delay 0.000 w 65.535 [s] 0 X X OVP txt Overvoltage protection OFF / ON / R01  R12/15* ON X X OVSET w Overvoltage protection trigger value 3 [V] w OVSETmax (80 V) [V] 80 V X X POWER_ON txt Response after power on RST / SBY / RCL / R01  R12/15* RST X X PSET w Power setpoint [W]

0 w Pnom (1500, 3000, 4500) [W] (PSET = PNOM)  P-REG. OFF)

Pnom X X

REPETITION n(,i) Number of repetitions for sequence function 0 n 255; 0 means continuous repetition.

i is an optional parameter for the setup memory location (1 through 12/15), which should be written directly with REPETITION.

0XX

SEQUENCE txt(,n) SEQUENCE control command OFF / GO / HOLD / CONT(,n) / STRT / STEP (,n) / BSTP / STOP / ESC

n is an optional parameter from start address to stop address

—XX

SIG123 txt1,txt2,txt3 Analog interface signal outputs OFF / ON / OUT / MODE / SEQ / SSET / U_LO / U_HI / I_LO / I_HI OFF X X SINK txt Sink function on/off OFF / ON ON X X SM_LOAD n Load sequence memory location

USET,ISET,TSET,FSET

1 n 1536/1700* — X X

SM_STORE n Write current USET,ISET,TSET,FSET to sequence

memory location

1 n 1536/1700* n = 0: clear contents from start to stop address

—XX

SSET txt Command for an assigned switching function OFF / ON OFF X X

STA

RT_STOP

m,n(,i) Start and stop address 1 n1 n2 1536/1700*

i is an optional parameter for the setup memory location (1 through 12/15), which should be written directly with START_STOP.

1.1 X X

STORE n,w1,w2,w3,txt Transfer parameters directly to memory 1 n 1536/1700* , memory location address

0 w1 Unom [V] 0 w2 Inom [V] 0 w3 65.535 [s], 0 means Tdef txt, see “FSET”

—XX

T_MODE txt1,txt2 Function selection for trigger inputs OFF / OUT / SQS / SEQ(,n) / LLO / MIN (,n) / AIX / AIU / AII OFF X X TDEF w(,i) Default time rate for SEQUENCE function 0.001 w 65.535 [s]

i is an optional parameter for the setup memory location (1 through 12/15*), which should be written directly with TDEF.

0.001 X X

TIMEDATE txt Set system clock (RTC) yyyy-mm-ddThh:mm:ss unv X X TSET w Memory location-specific dwell time for sequence

function

0.000 = Tdef, 0.001 w 65.535 [s] 0.000 X X

UI_C_SET w1,w2,w3,w4 Reference values for Uout/Iout, tolerance band

function

w1, w2: 0  w1 < w2  Unom [V] w3, w4: 0  w3 < w4  Inom [A]

0,Unom, 0, Inom

UL_H (ULIM) w Upper limit value for voltage setting Uset  w  Unom

[V] Unom X X

UL_L w Lower limit value for voltage setting 0 w Uset [V] 0 X X USET w Voltage setpoint [V] UL_L w UL_H [V] 0 X X WAIT w Additional waiting time 0.001 w 65.535 [s] — X

Setting Command

Parameter Meaning Value Range / Selection

Default

Setting After

RESET *RST

Manual

Remote

60 GMC-I Messtechnik GmbH

10.2 Queriable Functions and Parameters

Query Command Meaning Response

Parameter

Values / Format

Manual

Remote

Sample Response Response

String Length

General Query Commands *DDT? Define device trigger txt Delimiter for commands: “;” X

USET 5.123;ISET 10;OUTPUT ON

80

*ESE? Standard event status enable query n 0 n 255 X

127

*ESR? Standard event status register query n 0 n 255 X

*IDN? Query device ID txt X

GMC-I GOSSEN-METRAWATT,PSP1500 P060RU060P,0-Series No 008 ,01. B01

*IST? Individual status query n n = 0, 1 X

*LRN? (i) Query device settings (LEARN)

i is an optional parameter for the setup memory (location 1 through 12/15), which should be read out directly.

txt X

Sample response for *LRN? 390

*OPC? Operation complete query n n = 0, 1 X

*PRE? PPOLL enable register enable query n 0 n 255 X

*PSC? Power-on status clear query n n = 0, 1 X

 3

*SRE? Service request enable query n 0 n 255 X

 3

*STB? Read status byte query n 0 n 127 X

 3

*TST? Self-test function n n = 0, 1 X

CRA? Condition register A n 0 n 255 X X

 3

CRB? Condition register B n 0 n 255 X X

 3

ERA? Device dependent event register A

query

n0 n 255 X X

 3

ERAE? Device dependent event register A

enable query

n0 n 255 X

240

 3

ERB? Device dependent event register B

query

n0 n 255 X X

 3

ERBE? Device dependent event register B

enable query

n0 n 255 X

128

 3

ERC? Device dependent event register C

query

n0 n 255 X X

 3

ERCE? Device dependent event register C

enable Query

n0 n 255 X

 3

Device-Specific Functions and Queries ANALOG _IN ? Connection of analog control inputs

U(Uext), U(Iext)

txt1,txt2 OFF / ON / SSET xx X

ANALOG_IN ON, OFF

C_DYN? Setting for current regulating

dynamics

txt R / L X X

C_DYN R

DISPLAY? Digital display function switching txt1,txt2 txt1: ON / OFF / UO /US / PS

txt2: ON / OFF / IO / IS / PO

xx X

DISPLAY UO, PO

ERROR? List of error messages n1,n2,n3,n4 n1,n2,n3: last error

n4: μC-RSTSRC register

ERROR 032,031,000.001

FSET? Sequence function parameter txt

CLR / NF / RU / RI / SOFF / S_ON / AUOF / AUON / AUSS / AIOF / AION / AISS / R01 ... R12/15* / S01 ... S12/15*

FSET NF

IL_H? (ILIM?) Upper limit value for current setting w +XXX.XXX [A] X X

IL_H +060.000

IL_L? Lower limit value for current setting w +XXX.XXX [A] X X

IL_L +000.000

IMAX? Max. measured current value w +XXX.XXX [A] X X

IMAX +000.212

IMIN? Min. measured current value w +XXX.XXX [A] X X

IMIN +000.204

IOUT? Presently measured current value w +XXX.XXX [A] X X

IOUT +000.208

ISET? Selected current setpoint w +XXX.XXX [A] X X

ISET +015.000

MEAS_LPF?

Low-pass filter for meas. value acquisition

txt 1 / 2 / 3 / 4 X X

MEAS_LPF 3

manual: last error only; xx: manual: division into partial functions

3020100

1 2 3 4 5 6 7 8 9 10 11 12 13

GMC-I Messtechnik GmbH 61

Terminating device messages:

The following end-of-text characters can be used for data receipt: With IEC bus control: NL (hex: 0A) or NL & EOI or DAB & EOI;

With RS 232C control: NL or CR (hex: 0D) or ETB (hex: 17) or ETX (hex: 03).

The following end-of-message character is used when transmitting the response string

:With IEC bus control: NL & EOI;

With RS 232C control: last received end-of-message character. Abbreviating commands: Abbreviated commands are identified with boldface letters. Letters not printed in boldface can be omitted. Example: “OUTPUT ?” = “OU?” As a rule, letters can be entered in upper or lower case. Stringing commands together: Several commands is a single data string must be separated by semicolons (;). Example: “USET?; ISET?; OUTPUT?”

Constant voltage and/or constant current mode

Constant power mode * /15 or /1700, respectively as from firmware version 004 xx: manual: division into partial functions

MINMAX? Min-Max storage for measured U and I

values

txt OFF / ON

“ON”  enable tolerance band

func-

tion for CRB.0/1, ERC.0/1, SIGx_OUT

MINMAX OFF

MODE?

Momentary control mode of the power output

txt CV / CC / CP / OL / OFF

LED

MODE CV

OC_DELAY? Overcurrent protection triggering delay w 0.000 w 65.535 [s] X X

OC_DELAY 00.000

OCP? Overcurrent protection txt OFF / ON / R01  R12/15* X X

OCP OFF

OCSET? Overcurrent protection trigger value w +XXX.XXX [A] X X

OCSET +080.000

OUTPUT? Output on-off status txt OFF/ ON

LED

OUTPUT ON

OV_DELAY?

Overvoltage protection triggering delay

w XX.XXX [s] 0 w 65,535 [s] X X

OV_DELAY 00.000

OVP? Overvoltage protection txt OFF / ON / R01  R12/15* X X

OVP ON

OVSET? Overvoltage protection trigger value w +XXX.XXX [V] X X

OVSET +080.000

POUT? Current output power w +XXXXX.X [W] X X

POUT +00002.1

POWER_ON? Response after power on txt RST / SBY / RCL / R01  R12/15* X X

POWER_ON SBY

PSET? Power setpoint [W] w +XXXXX.X [W]

W = Pnom (Pnom/2 for 115 Vac)

W  Pnom (Pset<Pnom/2 for 115 Vac)

PSET +01500.0

REPETITION? (i) Number of repetitions for sequence

function i is an optional parameter for the setup memory location (1 through 12/15*), which should be read out directly.

n0 n 255;

0 means continuous repetition

REPETITION 000

RLOAD?

Momentary load resistance [Calculated value R = U/I]

w +XXX.XXX

[]

RLOAD +030.833

SEQUENCE? SEQUENCE Status txt,n1,n2,n3 txt: RDY / HALT / RUN

n1: 000  n1  012/15* (setup memory) n2: 001  n2  255 (remaining repetitions), n2 = 999 = continuous n3: 0001  n3  1536/1700* (memory location)

xx X

SEQUENCE RDY,000.999,0005

SIG123? Analog interface signal outputs txt1,txt2,txt3 OFF / ON / OUT / MODE / SEQ /

SSET / U_LO / U_HI / I_LO / I_HI

SIG123 MODE, OUT, OFF

SINK? Sink function on/off txt OFF / ON X X

SINK ON

SSET?

Status of an assigned switching function

txt OFF / ON X X

SSET OFF

START_STOP? (i) Start and stop address

i is an optional parameter for the setup memory location (1 through 12/15), which should be read out directly.

m,n 1 n1 n2 1536/1700* xx X

START_STOP 0001.0005

STORE? (m(,n(,tab))) Read data from sequence memory

See “Descriptions of Operating Commands” for further details.

n,w1,w2,w3, txt

n: memory location address w1: +XXX.XXX [V] w2: +XXX.XXX [A] w3: XX.XXX [s] txt: “FSET”

xx X

STORE 0003,+020.000,+015.000,0

0.000, NF

T_MODE? Function status for trigger inputs 1 and 2txt1,txt2 OFF / OUT / SQS / SEQ(,n) / LLO /

MIN (,n) / AIX / AIU / AII

T_MODE OUT,LLO

TDEF? (i) Default time for sequence function

i is an optional parameter for setup memory (1 through 12/15), which should be read out directly.

w 0.001  w  65.535[ s] X X

TDEF 01.000

TIMEDATE? System clock time/date (RTC) txt yyyy-mm-ddThh:mm:ss xx X

TIMEDATE 2007-10-08T12:27:13

TSET? Memory location-specific dwell time

for sequence function

w 0.000  w  65.535[ s]

0.000 = Tdef,

TSET 00.000

UI_C_SET? Reference values for Uout/Iout,

tolerance band function

w1,w2,w3,w 4 [V][V][A][A]

w1, w2: 0  w1 < w2  Unom [V] w3, w4: 0  w3 < w4  Inom [A]

xx X

UI_C_SET +000.000,+060.000,+00

0.000,+060.000

UL_H? (ULIM?) Upper limit value for voltage setting w +XXX.XXX [V] X X

UL_H +060.000

UL_L? Lower limit value for voltage setting w +XXX.XXX [V] X X

UL_L +000.000

UMAX? Max. measured voltage value w +XXX.XXX [V] X X

UMAX +010.004

UMIN? Minimum measured voltage value w +XXX.XXX [V] X X

UMIN +009,992

UOUT? Presently measured voltage value w +XXX.XXX [V] X X

UOUT +009.998

USET? Selected voltage setpoint w +XXX.XXX [V] X X

USET +010.000

Query Command Meaning Response

Parameter

Values / Format

Manual

Remote

Sample Response Response

String Length

62 GMC-I Messtechnik GmbH

10.3 Sequence Status Diagram

SEQUENCE LED

OFF: SEQ. READY

ON: SEQ. HOLD

FLASHING: SEQ. RUN

(

)

(

CUR

)

(

)

(

)

(

)

(

…

)

(

…

)

(

…

)

STEP (NEXT)

)

SEQUENCE run (STOP)



ESC





READY

RUN

HOLD

(PAUSE)

HOT

KEY

HOT

KEY

HOT

KEY

GMC-I Messtechnik GmbH 63

10.4 Memory Structure

Setting / Actual Value Query

Setpoint specification

REPETITION

STOP

START

TDEF

MINMAX

OCP

OVSET (OVP)

IL_H

UL_H

OUTPUT

TSET

ISET

USET

SETUP

Memory

Min-Max

Meas. Value

Memory

Current

Measured

Default Device Settings

#15

UMAX

UMIN

IMAX

IMIN

UOUT

IOUT

POUT



  

UOUT > UMAX

UOUT < UMIN

IOUT > IMAX

IOUT < IMIN

*SAV n

*RCL n

SM_LOAD n 1)

Sequence Memory

STORE? n

e.g. USET w

e.g. USET?

STORE n,w1,w2,w3,txt

Mains power on & Pon rcl / SbY

*RST

Mains power on & Pon rSt

Mains power off

SM_STORE n

Active

Device

Setting

n = 1 ... 12

/ 15

n = 1 ... 1536

/ 1700

e.g. UMAX?

e.g. UOUT?

T_MODE

Manual editing

SEq_c n Clear contents of memory location n (CLR)

SEq_c St-SP Clear memory contents from start to stop address (CLR)

SEq_r n

Content of memory location n is cleared between start and stop addresses,

memory locations up to stop address are reset

(n -> n-1), an empty memory location is inserted at the stop address (CLR)

SEq_i n Empty memory location n inserted between start & stop addresses

memory locations up to stop address are added up

(n -> n+1), the previous stop address memory location

is deleted

FSET

DISPLAY

UI_C_SET



e.g. *LRN? n

Tolerance Band

Function

(MINMAX=ON)

OUT

>UI_C_SET (W2)

OUT

<UI_C_SET (W1)

OUT

>UI_C_SET (W4)

OUT

<UI_C_SET (W3)

e.g. CRB?

ISET

TSET

FSET

USET

*RCL99

(autom.)

Or execution of a sequence function2 If appropriately configured with “SIG123 ...”3 After *RST, *RCL n

SIG x 2)

Main On & Pon r01 ... r12

/ 15

#99

undo

Non-Volatile Memory Range

ISET

TSET

FSET

USET

(MINMAX=ON)

Values

64 GMC-I Messtechnik GmbH

11 System Messages

Procedures and entries are monitored in order to provide the user with support.

The device is capable of detecting and reading out a great variety of defective procedures.

In the case of manual operation, the error appears directly at the display for a brief period of time. In addition to this, the last error message can be viewed with the help of the appropriate menu function.

Err appears at the left-hand display, and the three digit error code at the right-hand display.

In the case of operation with a PC, the last three error messages can be accessed by executing the ERROR? command (see ERROR? command in the section entitled “Descriptions of Operating Commands”.

Code Err...

Meaning / Cause Remedy

00 No error 01 TYPE (BZ) detection For internal production process only 05 UNKNOWN KEYCODE, or in case of “LCL LOCKED”, [ESC] has been briefly

activated for enabling 12 CMD buffer overflow Overflow at internal CMD buffer 21 USET, ISET, PSET (parameter error) 22 UL,IL (parameter error) 29 DDTE *DDT command string > 80 characters or ?*TRG? within *DDT ... 31 CME command error General 32 EXE execution error General

Interface

51 RS 232, PB, parity bit 52 RS 232, SB, stop bit 53 PB + SB, RS 232 54 RS232, FRAME OVERFLOW (impermissible combination DB/PB/SB) Only occurs during manual configuration 55 Active talker state but no listener present Only possible with IEEE 488 interface option 56 IEC$LATA$ERR (active listener and active talker) Only possible with IEEE 488 interface option 61 ADJUST parameter error 62 ADJUST order impermissible (REMOTE) 63 [U/I]-OFFSET/FULL SCALE -> (!) [CV/CC] MODE Corresponding operating mode required! 64 ADJUST LIMITs or OFFSET (MEASUREMENT NEGATIVE or OVERFLOW) 66 CALIBRATION ERROR/EXIT (-> UNCAL) 69 MEMORY DATA (-> ERROR) ?) Faulty data, possible cause: low battery 71 Table values (#): USET<UL_L, USET>UL_H, ISET<IL_L, ISET>IL_H Limit error during sequence execution 73 OUTE: “OUTPUT ON” =/= Tx MODE “OUT” & Tx-SIG “OUT OFF” Trigger mode power output and signal blocked (=OFF!) 74 TRGE: “MINMAX ON” =/= Tx MODE “MIN” & Tx-SIG “MINMAX OFF” Min-max control for the trigger mode and signal blocked (=OFF!) 75 TRGE: “SEQUENCE ON” =/= Tx MODE “SEQ” & Tx-SIG “SEQUENCE STOP” Sequence control for the trigger mode and signal blocked (=OFF!) 76 TRGE: “ANALOG INP” =/= Tx MODE “AI?” & Tx-SIG (UEXT,IEXT) Uext, Iext control for the trigger mode and signal blocked (=ON!) 81 RCL n (no data): SETUP memory n: invalid or no data 82 START -> STOP - INVALID VALUES 83 START-ADR > STOP-ADR 84 Not (STOP_ADR < MEM < START_ADR) or SUBSEQUENCE (cond.) Address range or storage address is out of actual start-stop-address range or is an active sub-

sequence. Specify the sequence range for delete and repeat command. 85 CONTINUE (no initialization, status =/= “HALT”) 86 SUBSUBSEQUENCE impermissible 89 “SEQUENCE OFF” required for current command 91 SELFTEST (*TST?) 96 MIN LIMIT UNDERFLOW, direct entry of a numerical value requires > UL_L and/or > IL_L 93 Current command not permissible for power control! Impermissible combination of functions 96 MIN LIMIT UNDERFLOW Numerical direct entry of a numerical value > UL_L and/or > IL_L necessary 97 MIN LIMIT UNDERFLOW 98 MAX LIMIT OVERFLOW 99 OVERLOAD / OVERFLOW

GMC-I Messtechnik GmbH 65

RSTSRC (RESET SOURCE REGISTER): Description / Text per Data Sheet no. C8051F122

DISPLAY Meaning/Cause Remedy

left right Err PFC PFC Error Inadequate/unstable line voltage or device error, not ready for operation, device controls

disabled, shutdown (OUTPUT OFF)

Err AC-H Change from AC-LOW to AC-HIGH Transition from the „lower“ line voltage range (= status after power ON) AC_L to the „upper“

range AC_H generates message „ERR AC-H“. Please note: Pnom value is not automatically raised in the process! A new „Power ON“ is required for this purpose, including: – automatic RESET (parameter setting: „POWER_ON RST“) or – subsequent „RESET“ (manual operation/interface) or – Recall of a suitable SETUP memory

(which has not been saved under power derating conditions!)

(Pnom is the reference quantity for the PSET function!)

Err AC-L Change from AC-HIGH to AC-LOW up to and including firmware 004:

Transition from the „upper“ line voltage range to the „lower“ range generates message „ERR AC-L“ and results in a shutdown if no power derating has been active (operation disabled, „Power ON“ required!) Transition from the „upper“ line voltage range AC_H to the „lower“ range AC_L generates message „ERR AC-L“ without shutdown if power derating has already been active.

as from firmware 005:

Transition from the „upper“ line voltage range to the „lower“ range generates the message „ERR AC-L“ and results in power derating, as long as the status „AC LOW“ „lower“ line voltage range applies. Upon reversal of the line voltage to the „upper“ line voltage range (status „AC HIGH“), the power derating is cancelled.

Err AC-F AC-FAIL Inadequate/unstable line voltage or device error, not ready for operation, device controls

disabled, shutdown (OUTPUT OFF)

as from firmware 010:

Temporary deactivation for the purpose of device protection. If insufficient/instable line voltage is present or a device error occurs, the instrument shuts down (OUTPUT OFF) and is not ready for operation during this time. After approximately 0.25 s, an automatic restart is performed by the instrument in accordance with the settings for POWER_ON (standby, reset, recall).

D7 (80H): RESERVED D6 (40H): CNVRSEF: (CONVERT START 0 RESET SOURCE FLAG) D5 (20H): CORSEF: (COMPARATOR 0 RESET FLAG) D4 (10H): SWRSF: SOFTWARE RESET FLAG D3 (08H): WDTRSF: WATCHDOG TIMER RESET FLAG D2 (04H): MCDRSF: MISSING CLOCK DETECTOR FLAG D1 (02H): PORSF: POWER-ON RESET FLAG D0 (01H): PINRSF: HW PIN RESET FLAG

66 GMC-I Messtechnik GmbH

12 Operating Software

Comprehensive operating software is provided for the SYSKON Konstanter (on the included CD-ROM, or can be downloaded from our website).

The software is started by running the EXE file; no further installation is required.

The software detects devices which are connected to the various possible interfaces including USB, RS 232 and GPIB. Devices detected by the software are identified and can be selected. If more than one device is connected, the software can be started several times in order to operate them.

The activated device logs on via the soft front panel and is thus unequivocally recognized.

GMC-I Messtechnik GmbH 67

Sub-menus

Further operation can be carried out as shown in the figures.

Basic panel Advanced panel

Sequence panel Configuration panel

Task panel Command panel

68 GMC-I Messtechnik GmbH

GMC-I Messtechnik GmbH 69

13 Index

Control Mode Query

PC Query

. . . . . . . . . . . . . . . . . . 47

Device Settings

Current Settings

Query from PC . . . . . . . . . . . 40

Save

Via PC

. . . . . . . . . . . . . . 42

From Setup-Sequence Memory

Via PC

. . . . . . . . . . . . . . 41

Reset

Via PC

. . . . . . . . . . . . . . . . . 41

Transfer to / Query from Sequence Memory

Via PC . . . . . . . . . . . . . . . . . 53

Digital Displays

Switch On and Off via PC

. . . . . . 44

Interface

Installation . . . . . . . . . . . . . . . . . . . 6

Parameter Setting

. . . . . . . . . . . . 26

Technical Data . . . . . . . . . . . . . . . . 7

Min-Max Memory

Display

Via PC

. . . . . . . . . . . . . .46, 55

Edit

Via PC

. . . . . . . . . . . . . . . . . 47

Operating Commands

List of Setting Commands . . . . . . 58

Output Current

Measured Value

PC Query

. . . . . . . . . . . . . . . 46

Setpoint

Via PC

. . . . . . . . . . . . . . . . . 47

Setting Limit

Via PC . . . . . . . . . . . . . . 46, 54

Output Power

PC Query

. . . . . . . . . . . . . . . . . . 50

Output Switching stazs

Response at Power On

Via PC

. . . . . . . . . . . . . . . . . 50

Output Swithing Status

Switch/Query

Via PC

. . . . . . . . . . . . . . . . . 49

Output Voltage

Measured Value

PC Query

. . . . . . . . . . . . . . . 55

Setpoint

Via PC

. . . . . . . . . . . . . . . . . 55

Overcurrent Protection

Activate/Deactivate

Via PC

. . . . . . . . . . . . . . . . . 48

Query Device ID . . . . . . . . . . . . . . . . . 40

RESET . . . . . . . . . . . . . . . . . . . . . . . . 39

Response after Power On with Varying Line Voltage Ranges

Self-Test via PC . . . . . . . . . . . . . . . . . . 42

Sequence

Control

Via PC

. . . . . . . . . . . . . . . . . 51

Dwell Time

Memory Location Independent

Via PC

. . . . . . . . . . . . . . 53

Memory Location Specific

Via PC . . . . . . . . . . . . . . 54

Repetitions

Via PC

. . . . . . . . . . . . . . . . . 51

Start Address

Via PC

. . . . . . . . . . . . . . . . . . . . . 53

Status and Event Management

Clear Event Register . . . . . . . . . . . 39

Device Clear Function

. . . . . . . . . 44

Enable Registers

. . . . . . . . . . . . . 40

Event Register Query

. . . . . . . . . . 40

Individual Status Query

. . . . . . . . . 40

Operation Complete Query . . . . . 41

Power-On Status Clear Query . . . 41 Status Byte Register Query

. . . . . 42

Status Register Query . . . . . . . . . 44

Wait to Continue . . . . . . . . . . . . . 42

Stop Address

Via PC

. . . . . . . . . . . . . . . . . . . . . 53

System Messages, Error Messages

. . . 64

Trigger Digital

Define Device Trigger . . . . . . . . . . 39

Trigger . . . . . . . . . . . . . . . . . 42

Trigger Response

Edit

Via PC

. . . . . . . . . . . . . . . . . 54

Waiting Time . . . . . . . . . . . . . . . . . . . . 55

70 GMC-I Messtechnik GmbH

14 Order Information

Software

Further information regarding operating software and drivers is available for download on the internet:

http://www.gossenmetrawatt.com

Accessories

15 Repair and Replacement Parts Service

Calibration Center* and Rental Instrument Service

If required please contact:

GMC-I Service GmbH Service Center Thomas-Mann-Str. 20 90471 Nürnberg, Germany Phone: +49 911 817718-0 Fax: +49 911 817718-253 e-mail service@gossenmetrawatt.com www.gmci-service.com

This address is only valid in Germany. Please contact our representatives or subsidiaries for service in other countries.

* DAkkS Calibration Laboratory for Electrical Quantities

D-K-15080-01-01 accredited per DIN EN ISO/IEC 17025

Accredited quantities: direct voltage, direct current value, direct current resistance, alternating voltage, alternating current value, AC active power, AC apparent power, DC power, capacitance, frequency, temperature

Competent Partner

GMC-I Messtechnik GmbH

is certified in accordance with

DIN EN ISO 9001. Our DAkkS calibration laboratory is accredited by the Deutsche

Akkreditierungsstelle GmbH (National accreditation body for the Federal Republic of Germany) in accordance with DIN EN ISO/IEC 17025 under registration number D-K-15080-01-01.

We offer a complete range of expertise in the field of metrology: from test reports and factory calibration certificates, right on up to DAkkS calibration certificates.

Our spectrum of offerings is rounded out with free test equipment management.

Our service department includes an on-site DAkkS calibration bench. If errors are discovered during calibration, our specialized personnel are capable of completing repairs using original replacement parts.

As a full service calibration lab, we can calibrate instruments from other manufacturers as well.

16 Product Support

If required please contact:

GMC-I Messtechnik GmbH

Product Support Hotline

Phone: +49 911 8602-0 Fax: +49 911 8602-709 e-mail: support@gossenmetrawatt.com

17 Manufacturer’s Guarantee

The SYSKON Konstanter is guaranteed for a period of 2 years after shipment. The manufacturer’s guarantee covers materials and workmanship. Damages resulting from use for any other than the intended purpose, as well as any and all consequential damages, are excluded.

Calibration is guaranteed for a period of 12 months.

Description (abbreviated name) Article Number

SYSKON P500-060-030 SYSTEM KONSTANTER K346A SYSKON P800-060-040 SYSTEM KONSTANTER K347A SYSKON P1500-60-60 SYSTEM KONSTANTER K353A SYSKON P3000-060-120 SYSTEM KONSTANTER K363A SYSKON P4500-060-180 SYSTEM KONSTANTER K364A Option IEEE 488 interface for SYSKONKONSTANTER K384A

Description Note Article No.

RS 232 bus cable, 2 m For connecting a device to an

RS 232 interface (extension cable, 9-pin socket / 9-pin plug connector)

GTZ32410 00R0001

GMC-I Messtechnik GmbH 71

Edited in Germany • Subject to change without notice • PDF version available on the Internet

GMC-I Messtechnik GmbH Südwestpark 15 90449 Nürnberg •

Germany

Phone +49 911 8602-111 Fax +49 911 8602-777 E-Mail info@gossenmetrawatt.com www.gossenmetrawatt.com

Gossen MetraWatt P500, P1500, P800, P4500, P3000 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual